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Finding the Third Proportional to 20,142 and 23,286

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Solution

The third proportional to 20,142 and 23,286 is: 26,920.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142 : 23,286 = 23,286 : x
  2. Step 2: Convert to fraction form
    20,142/23,286 = 23,286/x
  3. Step 3: Cross multiply
    20,142x = 23,286 × 23,286
  4. Step 4: Simplify right side
    20,142x = 542,237,796
  5. Step 5: Solve for x
    x = 542,237,796/20,142
  6. Step 6: Final answer
    x = 26,920.75

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Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.