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Finding the Third Proportional to 15,354.92 and 20,634.47

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Solution

The third proportional to 15,354.92 and 20,634.47 is: 27,729.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,354.92 : 20,634.47 = 20,634.47 : x
  2. Step 2: Convert to fraction form
    15,354.92/20,634.47 = 20,634.47/x
  3. Step 3: Cross multiply
    15,354.92x = 20,634.47 × 20,634.47
  4. Step 4: Simplify right side
    15,354.92x = 425,781,481.95
  5. Step 5: Solve for x
    x = 425,781,481.95/15,354.92
  6. Step 6: Final answer
    x = 27,729.32

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.