Home / 28,260.90-42,386.49-9,538.97

Finding the Fourth Proportional to 28,260.90, 42,386.49 and 9,538.97

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Solution

The fourth proportional to 28,260.90, 42,386.49 and 9,538.97 is: 14,306.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,260.90 : 42,386.49 = 9,538.97 : x
  2. Step 2: Convert to fraction form
    28,260.90/42,386.49 = 9,538.97/x
  3. Step 3: Cross multiply
    28,260.90x = 42,386.49 × 9,538.97
  4. Step 4: Simplify right side
    28,260.90x = 404,323,244.58
  5. Step 5: Solve for x
    x = 404,323,244.58/28,260.90
  6. Step 6: Final answer
    x = 14,306.81

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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.