TOOLS2030 / MATHEMATICS / PROPORTION RATIO CALCULATOR
Proportion (Ratio) Calculator
Solve proportions in the form A : B = C : X and simplify ratios instantly.
Formula
For A : B = C : X, the missing value is X = (B × C) ÷ A.
Solve proportions in the form A : B = C : X and simplify ratios instantly.
For A : B = C : X, the missing value is X = (B × C) ÷ A.