Home / 31,855.92-43,957.80-18,425.04

Finding the Fourth Proportional to 31,855.92, 43,957.80 and 18,425.04

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Solution

The fourth proportional to 31,855.92, 43,957.80 and 18,425.04 is: 25,424.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,855.92 : 43,957.80 = 18,425.04 : x
  2. Step 2: Convert to fraction form
    31,855.92/43,957.80 = 18,425.04/x
  3. Step 3: Cross multiply
    31,855.92x = 43,957.80 × 18,425.04
  4. Step 4: Simplify right side
    31,855.92x = 809,924,223.31
  5. Step 5: Solve for x
    x = 809,924,223.31/31,855.92
  6. Step 6: Final answer
    x = 25,424.61

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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.