Home / 31,843.20-43,942.32-17,695.20

Finding the Fourth Proportional to 31,843.20, 43,942.32 and 17,695.20

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Solution

The fourth proportional to 31,843.20, 43,942.32 and 17,695.20 is: 24,418.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,843.20 : 43,942.32 = 17,695.20 : x
  2. Step 2: Convert to fraction form
    31,843.20/43,942.32 = 17,695.20/x
  3. Step 3: Cross multiply
    31,843.20x = 43,942.32 × 17,695.20
  4. Step 4: Simplify right side
    31,843.20x = 777,568,140.86
  5. Step 5: Solve for x
    x = 777,568,140.86/31,843.20
  6. Step 6: Final answer
    x = 24,418.66

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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.