Home / 23,108.74-31,890.07-12,498.38

Finding the Fourth Proportional to 23,108.74, 31,890.07 and 12,498.38

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Solution

The fourth proportional to 23,108.74, 31,890.07 and 12,498.38 is: 17,247.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,108.74 : 31,890.07 = 12,498.38 : x
  2. Step 2: Convert to fraction form
    23,108.74/31,890.07 = 12,498.38/x
  3. Step 3: Cross multiply
    23,108.74x = 31,890.07 × 12,498.38
  4. Step 4: Simplify right side
    23,108.74x = 398,574,213.09
  5. Step 5: Solve for x
    x = 398,574,213.09/23,108.74
  6. Step 6: Final answer
    x = 17,247.77

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Half scale
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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.