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Finding the Third Proportional to 13,666 and 20,950

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Solution

The third proportional to 13,666 and 20,950 is: 32,116.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666 : 20,950 = 20,950 : x
  2. Step 2: Convert to fraction form
    13,666/20,950 = 20,950/x
  3. Step 3: Cross multiply
    13,666x = 20,950 × 20,950
  4. Step 4: Simplify right side
    13,666x = 438,902,500
  5. Step 5: Solve for x
    x = 438,902,500/13,666
  6. Step 6: Final answer
    x = 32,116.38

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.