Home / 28,251.85-42,326.11-13,231.41

Finding the Fourth Proportional to 28,251.85, 42,326.11 and 13,231.41

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Solution

The fourth proportional to 28,251.85, 42,326.11 and 13,231.41 is: 19,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.85 : 42,326.11 = 13,231.41 : x
  2. Step 2: Convert to fraction form
    28,251.85/42,326.11 = 13,231.41/x
  3. Step 3: Cross multiply
    28,251.85x = 42,326.11 × 13,231.41
  4. Step 4: Simplify right side
    28,251.85x = 560,034,115.12
  5. Step 5: Solve for x
    x = 560,034,115.12/28,251.85
  6. Step 6: Final answer
    x = 19,822.92

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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.