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Finding the Third Proportional to 15,120 and 36,504

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Solution

The third proportional to 15,120 and 36,504 is: 88,131.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120 : 36,504 = 36,504 : x
  2. Step 2: Convert to fraction form
    15,120/36,504 = 36,504/x
  3. Step 3: Cross multiply
    15,120x = 36,504 × 36,504
  4. Step 4: Simplify right side
    15,120x = 1,332,542,016
  5. Step 5: Solve for x
    x = 1,332,542,016/15,120
  6. Step 6: Final answer
    x = 88,131.09

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.