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Finding the Third Proportional to 20,503.13 and 28,248.75

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Solution

The third proportional to 20,503.13 and 28,248.75 is: 38,920.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503.13 : 28,248.75 = 28,248.75 : x
  2. Step 2: Convert to fraction form
    20,503.13/28,248.75 = 28,248.75/x
  3. Step 3: Cross multiply
    20,503.13x = 28,248.75 × 28,248.75
  4. Step 4: Simplify right side
    20,503.13x = 797,991,876.56
  5. Step 5: Solve for x
    x = 797,991,876.56/20,503.13
  6. Step 6: Final answer
    x = 38,920.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.