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Finding the Third Proportional to 20,442 and 28,932

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Solution

The third proportional to 20,442 and 28,932 is: 40,948.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442 : 28,932 = 28,932 : x
  2. Step 2: Convert to fraction form
    20,442/28,932 = 28,932/x
  3. Step 3: Cross multiply
    20,442x = 28,932 × 28,932
  4. Step 4: Simplify right side
    20,442x = 837,060,624
  5. Step 5: Solve for x
    x = 837,060,624/20,442
  6. Step 6: Final answer
    x = 40,948.08

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.