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Finding the Third Proportional to 20,636 and 29,764

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Solution

The third proportional to 20,636 and 29,764 is: 42,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,636 : 29,764 = 29,764 : x
  2. Step 2: Convert to fraction form
    20,636/29,764 = 29,764/x
  3. Step 3: Cross multiply
    20,636x = 29,764 × 29,764
  4. Step 4: Simplify right side
    20,636x = 885,895,696
  5. Step 5: Solve for x
    x = 885,895,696/20,636
  6. Step 6: Final answer
    x = 42,929.62

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.