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Finding the Third Proportional to 18,090 and 27,116

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Solution

The third proportional to 18,090 and 27,116 is: 40,645.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090 : 27,116 = 27,116 : x
  2. Step 2: Convert to fraction form
    18,090/27,116 = 27,116/x
  3. Step 3: Cross multiply
    18,090x = 27,116 × 27,116
  4. Step 4: Simplify right side
    18,090x = 735,277,456
  5. Step 5: Solve for x
    x = 735,277,456/18,090
  6. Step 6: Final answer
    x = 40,645.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.