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Finding the Third Proportional to 20,240 and 29,696

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Solution

The third proportional to 20,240 and 29,696 is: 43,569.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240 : 29,696 = 29,696 : x
  2. Step 2: Convert to fraction form
    20,240/29,696 = 29,696/x
  3. Step 3: Cross multiply
    20,240x = 29,696 × 29,696
  4. Step 4: Simplify right side
    20,240x = 881,852,416
  5. Step 5: Solve for x
    x = 881,852,416/20,240
  6. Step 6: Final answer
    x = 43,569.78

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.