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Finding the Third Proportional to 20,126 and 38,427

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Solution

The third proportional to 20,126 and 38,427 is: 73,369.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126 : 38,427 = 38,427 : x
  2. Step 2: Convert to fraction form
    20,126/38,427 = 38,427/x
  3. Step 3: Cross multiply
    20,126x = 38,427 × 38,427
  4. Step 4: Simplify right side
    20,126x = 1,476,634,329
  5. Step 5: Solve for x
    x = 1,476,634,329/20,126
  6. Step 6: Final answer
    x = 73,369.49

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.