Home / 31,372.47-47,058.39-7,998.66

Finding the Fourth Proportional to 31,372.47, 47,058.39 and 7,998.66

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Solution

The fourth proportional to 31,372.47, 47,058.39 and 7,998.66 is: 11,997.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372.47 : 47,058.39 = 7,998.66 : x
  2. Step 2: Convert to fraction form
    31,372.47/47,058.39 = 7,998.66/x
  3. Step 3: Cross multiply
    31,372.47x = 47,058.39 × 7,998.66
  4. Step 4: Simplify right side
    31,372.47x = 376,404,061.76
  5. Step 5: Solve for x
    x = 376,404,061.76/31,372.47
  6. Step 6: Final answer
    x = 11,997.91

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Double scale
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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.