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Finding the Third Proportional to 13,768 and 29,872

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Solution

The third proportional to 13,768 and 29,872 is: 64,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768 : 29,872 = 29,872 : x
  2. Step 2: Convert to fraction form
    13,768/29,872 = 29,872/x
  3. Step 3: Cross multiply
    13,768x = 29,872 × 29,872
  4. Step 4: Simplify right side
    13,768x = 892,336,384
  5. Step 5: Solve for x
    x = 892,336,384/13,768
  6. Step 6: Final answer
    x = 64,812.35

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.