Home / 38,689.83-57,960.02-28,540.33

Finding the Fourth Proportional to 38,689.83, 57,960.02 and 28,540.33

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Solution

The fourth proportional to 38,689.83, 57,960.02 and 28,540.33 is: 42,755.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689.83 : 57,960.02 = 28,540.33 : x
  2. Step 2: Convert to fraction form
    38,689.83/57,960.02 = 28,540.33/x
  3. Step 3: Cross multiply
    38,689.83x = 57,960.02 × 28,540.33
  4. Step 4: Simplify right side
    38,689.83x = 1,654,198,097.61
  5. Step 5: Solve for x
    x = 1,654,198,097.61/38,689.83
  6. Step 6: Final answer
    x = 42,755.37

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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.