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Finding the Third Proportional to 13,679 and 20,134

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Solution

The third proportional to 13,679 and 20,134 is: 29,635.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,679 : 20,134 = 20,134 : x
  2. Step 2: Convert to fraction form
    13,679/20,134 = 20,134/x
  3. Step 3: Cross multiply
    13,679x = 20,134 × 20,134
  4. Step 4: Simplify right side
    13,679x = 405,377,956
  5. Step 5: Solve for x
    x = 405,377,956/13,679
  6. Step 6: Final answer
    x = 29,635.06

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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.