Finding the Third Proportional to 18,015.75 and 27,438.75
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Solution
The third proportional to 18,015.75 and 27,438.75 is: 41,790.38
Step by Step Solution
- Step 1: Write the proportion equation
18,015.75 : 27,438.75 = 27,438.75 : x - Step 2: Convert to fraction form
18,015.75/27,438.75 = 27,438.75/x - Step 3: Cross multiply
18,015.75x = 27,438.75 × 27,438.75 - Step 4: Simplify right side
18,015.75x = 752,885,001.56 - Step 5: Solve for x
x = 752,885,001.56/18,015.75 - Step 6: Final answer
x = 41,790.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.