Home / 19,974.20-29,951.57-10,618.70

Finding the Fourth Proportional to 19,974.20, 29,951.57 and 10,618.70

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Solution

The fourth proportional to 19,974.20, 29,951.57 and 10,618.70 is: 15,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,974.20 : 29,951.57 = 10,618.70 : x
  2. Step 2: Convert to fraction form
    19,974.20/29,951.57 = 10,618.70/x
  3. Step 3: Cross multiply
    19,974.20x = 29,951.57 × 10,618.70
  4. Step 4: Simplify right side
    19,974.20x = 318,046,613.15
  5. Step 5: Solve for x
    x = 318,046,613.15/19,974.20
  6. Step 6: Final answer
    x = 15,922.88

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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.