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Finding the Fourth Proportional to 18,169.92, 27,250.56 and 5,020.80

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Solution

The fourth proportional to 18,169.92, 27,250.56 and 5,020.80 is: 7,530.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.92 : 27,250.56 = 5,020.80 : x
  2. Step 2: Convert to fraction form
    18,169.92/27,250.56 = 5,020.80/x
  3. Step 3: Cross multiply
    18,169.92x = 27,250.56 × 5,020.80
  4. Step 4: Simplify right side
    18,169.92x = 136,819,611.65
  5. Step 5: Solve for x
    x = 136,819,611.65/18,169.92
  6. Step 6: Final answer
    x = 7,530.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.