Home / 31,909.65-44,043.29-20,591.92

Finding the Fourth Proportional to 31,909.65, 44,043.29 and 20,591.92

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Solution

The fourth proportional to 31,909.65, 44,043.29 and 20,591.92 is: 28,422.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,909.65 : 44,043.29 = 20,591.92 : x
  2. Step 2: Convert to fraction form
    31,909.65/44,043.29 = 20,591.92/x
  3. Step 3: Cross multiply
    31,909.65x = 44,043.29 × 20,591.92
  4. Step 4: Simplify right side
    31,909.65x = 906,936,049.36
  5. Step 5: Solve for x
    x = 906,936,049.36/31,909.65
  6. Step 6: Final answer
    x = 28,422.00

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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.