Home / 18,937.24-28,397.13-5,605.47

Finding the Fourth Proportional to 18,937.24, 28,397.13 and 5,605.47

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Solution

The fourth proportional to 18,937.24, 28,397.13 and 5,605.47 is: 8,405.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.24 : 28,397.13 = 5,605.47 : x
  2. Step 2: Convert to fraction form
    18,937.24/28,397.13 = 5,605.47/x
  3. Step 3: Cross multiply
    18,937.24x = 28,397.13 × 5,605.47
  4. Step 4: Simplify right side
    18,937.24x = 159,179,151.01
  5. Step 5: Solve for x
    x = 159,179,151.01/18,937.24
  6. Step 6: Final answer
    x = 8,405.61

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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.