Home / 40,879.50-61,338.68-18,691.17

Finding the Fourth Proportional to 40,879.50, 61,338.68 and 18,691.17

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Solution

The fourth proportional to 40,879.50, 61,338.68 and 18,691.17 is: 28,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,879.50 : 61,338.68 = 18,691.17 : x
  2. Step 2: Convert to fraction form
    40,879.50/61,338.68 = 18,691.17/x
  3. Step 3: Cross multiply
    40,879.50x = 61,338.68 × 18,691.17
  4. Step 4: Simplify right side
    40,879.50x = 1,146,491,695.46
  5. Step 5: Solve for x
    x = 1,146,491,695.46/40,879.50
  6. Step 6: Final answer
    x = 28,045.64

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1.5x scale

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.