Home / 28,402.66-42,589.02-15,083.12

Finding the Fourth Proportional to 28,402.66, 42,589.02 and 15,083.12

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Solution

The fourth proportional to 28,402.66, 42,589.02 and 15,083.12 is: 22,616.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402.66 : 42,589.02 = 15,083.12 : x
  2. Step 2: Convert to fraction form
    28,402.66/42,589.02 = 15,083.12/x
  3. Step 3: Cross multiply
    28,402.66x = 42,589.02 × 15,083.12
  4. Step 4: Simplify right side
    28,402.66x = 642,375,299.34
  5. Step 5: Solve for x
    x = 642,375,299.34/28,402.66
  6. Step 6: Final answer
    x = 22,616.73

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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.