Home / 28,435.62-42,664.49-11,791.41

Finding the Fourth Proportional to 28,435.62, 42,664.49 and 11,791.41

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Solution

The fourth proportional to 28,435.62, 42,664.49 and 11,791.41 is: 17,691.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.62 : 42,664.49 = 11,791.41 : x
  2. Step 2: Convert to fraction form
    28,435.62/42,664.49 = 11,791.41/x
  3. Step 3: Cross multiply
    28,435.62x = 42,664.49 × 11,791.41
  4. Step 4: Simplify right side
    28,435.62x = 503,074,319.30
  5. Step 5: Solve for x
    x = 503,074,319.30/28,435.62
  6. Step 6: Final answer
    x = 17,691.69

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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.