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Finding the Third Proportional to 18,287.25 and 27,311.25

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Solution

The third proportional to 18,287.25 and 27,311.25 is: 40,788.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.25 : 27,311.25 = 27,311.25 : x
  2. Step 2: Convert to fraction form
    18,287.25/27,311.25 = 27,311.25/x
  3. Step 3: Cross multiply
    18,287.25x = 27,311.25 × 27,311.25
  4. Step 4: Simplify right side
    18,287.25x = 745,904,376.56
  5. Step 5: Solve for x
    x = 745,904,376.56/18,287.25
  6. Step 6: Final answer
    x = 40,788.22

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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.