Home / 23,110.16-31,891.91-12,499.76

Finding the Fourth Proportional to 23,110.16, 31,891.91 and 12,499.76

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Solution

The fourth proportional to 23,110.16, 31,891.91 and 12,499.76 is: 17,249.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,110.16 : 31,891.91 = 12,499.76 : x
  2. Step 2: Convert to fraction form
    23,110.16/31,891.91 = 12,499.76/x
  3. Step 3: Cross multiply
    23,110.16x = 31,891.91 × 12,499.76
  4. Step 4: Simplify right side
    23,110.16x = 398,641,220.94
  5. Step 5: Solve for x
    x = 398,641,220.94/23,110.16
  6. Step 6: Final answer
    x = 17,249.61

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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.