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Finding the Third Proportional to 18,831 and 29,175

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Solution

The third proportional to 18,831 and 29,175 is: 45,201.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831 : 29,175 = 29,175 : x
  2. Step 2: Convert to fraction form
    18,831/29,175 = 29,175/x
  3. Step 3: Cross multiply
    18,831x = 29,175 × 29,175
  4. Step 4: Simplify right side
    18,831x = 851,180,625
  5. Step 5: Solve for x
    x = 851,180,625/18,831
  6. Step 6: Final answer
    x = 45,201.03

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.