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Finding the Third Proportional to 18,002.75 and 39,255.75

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Solution

The third proportional to 18,002.75 and 39,255.75 is: 85,598.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,002.75 : 39,255.75 = 39,255.75 : x
  2. Step 2: Convert to fraction form
    18,002.75/39,255.75 = 39,255.75/x
  3. Step 3: Cross multiply
    18,002.75x = 39,255.75 × 39,255.75
  4. Step 4: Simplify right side
    18,002.75x = 1,541,013,908.06
  5. Step 5: Solve for x
    x = 1,541,013,908.06/18,002.75
  6. Step 6: Final answer
    x = 85,598.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.