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Finding the Third Proportional to 18,161 and 28,238

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Solution

The third proportional to 18,161 and 28,238 is: 43,906.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161 : 28,238 = 28,238 : x
  2. Step 2: Convert to fraction form
    18,161/28,238 = 28,238/x
  3. Step 3: Cross multiply
    18,161x = 28,238 × 28,238
  4. Step 4: Simplify right side
    18,161x = 797,384,644
  5. Step 5: Solve for x
    x = 797,384,644/18,161
  6. Step 6: Final answer
    x = 43,906.43

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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.