20:30::110:?
You asked:
Solve \(20 : 30=110 : ?\) for the variable \(?\).
MathBot Answer:
$$\begin{aligned}? &= 165\end{aligned}$$
Express both ratios as fractions. \[\frac{20}{30} = \frac{110}{?}\]
Cross-multiply and solve for the unknown. $$\begin{aligned}\frac{20}{30} &= \frac{110}{?} \\ 20 ? &= 3300 \\ ? &&= 165 \end{aligned}$$