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Finding the Third Proportional to 18,087 and 27,039

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Solution

The third proportional to 18,087 and 27,039 is: 40,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087 : 27,039 = 27,039 : x
  2. Step 2: Convert to fraction form
    18,087/27,039 = 27,039/x
  3. Step 3: Cross multiply
    18,087x = 27,039 × 27,039
  4. Step 4: Simplify right side
    18,087x = 731,107,521
  5. Step 5: Solve for x
    x = 731,107,521/18,087
  6. Step 6: Final answer
    x = 40,421.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.