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Finding the Third Proportional to 20,276 and 30,542

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Solution

The third proportional to 20,276 and 30,542 is: 46,005.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276 : 30,542 = 30,542 : x
  2. Step 2: Convert to fraction form
    20,276/30,542 = 30,542/x
  3. Step 3: Cross multiply
    20,276x = 30,542 × 30,542
  4. Step 4: Simplify right side
    20,276x = 932,813,764
  5. Step 5: Solve for x
    x = 932,813,764/20,276
  6. Step 6: Final answer
    x = 46,005.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.