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Finding the Third Proportional to 21,552.75 and 28,765.13

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Solution

The third proportional to 21,552.75 and 28,765.13 is: 38,391.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,552.75 : 28,765.13 = 28,765.13 : x
  2. Step 2: Convert to fraction form
    21,552.75/28,765.13 = 28,765.13/x
  3. Step 3: Cross multiply
    21,552.75x = 28,765.13 × 28,765.13
  4. Step 4: Simplify right side
    21,552.75x = 827,432,416.27
  5. Step 5: Solve for x
    x = 827,432,416.27/21,552.75
  6. Step 6: Final answer
    x = 38,391.04

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.