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Finding the Fourth Proportional to 28,750.54, 43,132.70 and 9,029.10

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Solution

The fourth proportional to 28,750.54, 43,132.70 and 9,029.10 is: 13,545.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,750.54 : 43,132.70 = 9,029.10 : x
  2. Step 2: Convert to fraction form
    28,750.54/43,132.70 = 9,029.10/x
  3. Step 3: Cross multiply
    28,750.54x = 43,132.70 × 9,029.10
  4. Step 4: Simplify right side
    28,750.54x = 389,449,461.57
  5. Step 5: Solve for x
    x = 389,449,461.57/28,750.54
  6. Step 6: Final answer
    x = 13,545.81

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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.