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Finding the Third Proportional to 18,130 and 25,665

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Solution

The third proportional to 18,130 and 25,665 is: 36,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130 : 25,665 = 25,665 : x
  2. Step 2: Convert to fraction form
    18,130/25,665 = 25,665/x
  3. Step 3: Cross multiply
    18,130x = 25,665 × 25,665
  4. Step 4: Simplify right side
    18,130x = 658,692,225
  5. Step 5: Solve for x
    x = 658,692,225/18,130
  6. Step 6: Final answer
    x = 36,331.62

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.