Finding the Third Proportional to 18,712 and 36,904
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Solution
The third proportional to 18,712 and 36,904 is: 72,782.45
Step by Step Solution
- Step 1: Write the proportion equation
18,712 : 36,904 = 36,904 : x - Step 2: Convert to fraction form
18,712/36,904 = 36,904/x - Step 3: Cross multiply
18,712x = 36,904 × 36,904 - Step 4: Simplify right side
18,712x = 1,361,905,216 - Step 5: Solve for x
x = 1,361,905,216/18,712 - Step 6: Final answer
x = 72,782.45
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Why These Related Problems?
These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.