Home / 31,267.86-43,149.22-17,120.70

Finding the Fourth Proportional to 31,267.86, 43,149.22 and 17,120.70

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Solution

The fourth proportional to 31,267.86, 43,149.22 and 17,120.70 is: 23,626.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,267.86 : 43,149.22 = 17,120.70 : x
  2. Step 2: Convert to fraction form
    31,267.86/43,149.22 = 17,120.70/x
  3. Step 3: Cross multiply
    31,267.86x = 43,149.22 × 17,120.70
  4. Step 4: Simplify right side
    31,267.86x = 738,744,850.85
  5. Step 5: Solve for x
    x = 738,744,850.85/31,267.86
  6. Step 6: Final answer
    x = 23,626.33

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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.