Home / 31,452.05-47,105.18-18,944.74

Finding the Fourth Proportional to 31,452.05, 47,105.18 and 18,944.74

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Solution

The fourth proportional to 31,452.05, 47,105.18 and 18,944.74 is: 28,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,452.05 : 47,105.18 = 18,944.74 : x
  2. Step 2: Convert to fraction form
    31,452.05/47,105.18 = 18,944.74/x
  3. Step 3: Cross multiply
    31,452.05x = 47,105.18 × 18,944.74
  4. Step 4: Simplify right side
    31,452.05x = 892,395,422.95
  5. Step 5: Solve for x
    x = 892,395,422.95/31,452.05
  6. Step 6: Final answer
    x = 28,373.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.