Home / 22,557.08-31,131.09-12,997.33

Finding the Fourth Proportional to 22,557.08, 31,131.09 and 12,997.33

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Solution

The fourth proportional to 22,557.08, 31,131.09 and 12,997.33 is: 17,937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,557.08 : 31,131.09 = 12,997.33 : x
  2. Step 2: Convert to fraction form
    22,557.08/31,131.09 = 12,997.33/x
  3. Step 3: Cross multiply
    22,557.08x = 31,131.09 × 12,997.33
  4. Step 4: Simplify right side
    22,557.08x = 404,621,046.97
  5. Step 5: Solve for x
    x = 404,621,046.97/22,557.08
  6. Step 6: Final answer
    x = 17,937.65

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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.