Rule of Three Calculator

Solve direct and inverse proportions easily.

Value A

Value B

Value C

Value X (Result)

How it works

1020

30x

x = (20 × 30) / 10

The **Rule of Three** is a method of having three numbers to help find the fourth.

Direct Rule of Three: Used when the relationship between the quantities is direct (if one increases, the other increases).
Inverse Rule of Three: Used when the relationship is inverse (if one increases, the other decreases).

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Tutorial

Solve direct and inverse proportions easily.

Use Cases

"Rule of Three Calculator"

Calculez la factorielle d'un entier non négatif.

Générez une suite de nombres de Fibonacci jusqu'à un terme spécifié.

Effectuez des additions, soustractions, multiplications et divisions de fractions.

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