Home / 31,551.20-43,545.84-18,982.88

Finding the Fourth Proportional to 31,551.20, 43,545.84 and 18,982.88

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Solution

The fourth proportional to 31,551.20, 43,545.84 and 18,982.88 is: 26,199.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,551.20 : 43,545.84 = 18,982.88 : x
  2. Step 2: Convert to fraction form
    31,551.20/43,545.84 = 18,982.88/x
  3. Step 3: Cross multiply
    31,551.20x = 43,545.84 × 18,982.88
  4. Step 4: Simplify right side
    31,551.20x = 826,625,455.22
  5. Step 5: Solve for x
    x = 826,625,455.22/31,551.20
  6. Step 6: Final answer
    x = 26,199.49

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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.