7:8=21:N

asked by guest
on Jan 21, 2025 at 2:50 pm



You asked:

Solve \(7 : 8=21 : N\) for the variable \(N\).

MathBot Answer:

$$\begin{aligned}N &= 24\end{aligned}$$

Express both ratios as fractions. \[\frac{7}{8} = \frac{21}{N}\]

Cross-multiply and solve for the unknown. $$\begin{aligned}\frac{7}{8} &= \frac{21}{N} \\ 7 N &= 168 \\ N &&= 24 \end{aligned}$$

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