Home / 18,581.80-27,874.14-5,433.88

Finding the Fourth Proportional to 18,581.80, 27,874.14 and 5,433.88

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Solution

The fourth proportional to 18,581.80, 27,874.14 and 5,433.88 is: 8,151.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.80 : 27,874.14 = 5,433.88 : x
  2. Step 2: Convert to fraction form
    18,581.80/27,874.14 = 5,433.88/x
  3. Step 3: Cross multiply
    18,581.80x = 27,874.14 × 5,433.88
  4. Step 4: Simplify right side
    18,581.80x = 151,464,731.86
  5. Step 5: Solve for x
    x = 151,464,731.86/18,581.80
  6. Step 6: Final answer
    x = 8,151.24

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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.