Home / 23,110.10-31,891.85-12,499.73

Finding the Fourth Proportional to 23,110.10, 31,891.85 and 12,499.73

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Solution

The fourth proportional to 23,110.10, 31,891.85 and 12,499.73 is: 17,249.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,110.10 : 31,891.85 = 12,499.73 : x
  2. Step 2: Convert to fraction form
    23,110.10/31,891.85 = 12,499.73/x
  3. Step 3: Cross multiply
    23,110.10x = 31,891.85 × 12,499.73
  4. Step 4: Simplify right side
    23,110.10x = 398,639,538.71
  5. Step 5: Solve for x
    x = 398,639,538.71/23,110.10
  6. Step 6: Final answer
    x = 17,249.58

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.