Home / 31,591.61-43,529.97-21,502.25

Finding the Fourth Proportional to 31,591.61, 43,529.97 and 21,502.25

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Solution

The fourth proportional to 31,591.61, 43,529.97 and 21,502.25 is: 29,627.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,591.61 : 43,529.97 = 21,502.25 : x
  2. Step 2: Convert to fraction form
    31,591.61/43,529.97 = 21,502.25/x
  3. Step 3: Cross multiply
    31,591.61x = 43,529.97 × 21,502.25
  4. Step 4: Simplify right side
    31,591.61x = 935,992,297.43
  5. Step 5: Solve for x
    x = 935,992,297.43/31,591.61
  6. Step 6: Final answer
    x = 29,627.88

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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.