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Finding the Third Proportional to 18,857.53 and 39,265.22

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Solution

The third proportional to 18,857.53 and 39,265.22 is: 81,758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.53 : 39,265.22 = 39,265.22 : x
  2. Step 2: Convert to fraction form
    18,857.53/39,265.22 = 39,265.22/x
  3. Step 3: Cross multiply
    18,857.53x = 39,265.22 × 39,265.22
  4. Step 4: Simplify right side
    18,857.53x = 1,541,757,403.49
  5. Step 5: Solve for x
    x = 1,541,757,403.49/18,857.53
  6. Step 6: Final answer
    x = 81,758.18

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.