Home / 31,267.71-43,149.92-17,121.87

Finding the Fourth Proportional to 31,267.71, 43,149.92 and 17,121.87

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Solution

The fourth proportional to 31,267.71, 43,149.92 and 17,121.87 is: 23,628.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,267.71 : 43,149.92 = 17,121.87 : x
  2. Step 2: Convert to fraction form
    31,267.71/43,149.92 = 17,121.87/x
  3. Step 3: Cross multiply
    31,267.71x = 43,149.92 × 17,121.87
  4. Step 4: Simplify right side
    31,267.71x = 738,807,235.14
  5. Step 5: Solve for x
    x = 738,807,235.14/31,267.71
  6. Step 6: Final answer
    x = 23,628.44

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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.