Home / 31,921.04-44,049.12-18,491.42

Finding the Fourth Proportional to 31,921.04, 44,049.12 and 18,491.42

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Solution

The fourth proportional to 31,921.04, 44,049.12 and 18,491.42 is: 25,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.04 : 44,049.12 = 18,491.42 : x
  2. Step 2: Convert to fraction form
    31,921.04/44,049.12 = 18,491.42/x
  3. Step 3: Cross multiply
    31,921.04x = 44,049.12 × 18,491.42
  4. Step 4: Simplify right side
    31,921.04x = 814,530,778.55
  5. Step 5: Solve for x
    x = 814,530,778.55/31,921.04
  6. Step 6: Final answer
    x = 25,517.05

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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.