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Finding the Third Proportional to 20,450 and 27,481

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Solution

The third proportional to 20,450 and 27,481 is: 36,929.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450 : 27,481 = 27,481 : x
  2. Step 2: Convert to fraction form
    20,450/27,481 = 27,481/x
  3. Step 3: Cross multiply
    20,450x = 27,481 × 27,481
  4. Step 4: Simplify right side
    20,450x = 755,205,361
  5. Step 5: Solve for x
    x = 755,205,361/20,450
  6. Step 6: Final answer
    x = 36,929.36

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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.