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Finding the Third Proportional to 18,406 and 27,951

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Solution

The third proportional to 18,406 and 27,951 is: 42,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406 : 27,951 = 27,951 : x
  2. Step 2: Convert to fraction form
    18,406/27,951 = 27,951/x
  3. Step 3: Cross multiply
    18,406x = 27,951 × 27,951
  4. Step 4: Simplify right side
    18,406x = 781,258,401
  5. Step 5: Solve for x
    x = 781,258,401/18,406
  6. Step 6: Final answer
    x = 42,445.85

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.