Home / 31,252.94-43,129.05-17,105.78

Finding the Fourth Proportional to 31,252.94, 43,129.05 and 17,105.78

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Solution

The fourth proportional to 31,252.94, 43,129.05 and 17,105.78 is: 23,605.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,252.94 : 43,129.05 = 17,105.78 : x
  2. Step 2: Convert to fraction form
    31,252.94/43,129.05 = 17,105.78/x
  3. Step 3: Cross multiply
    31,252.94x = 43,129.05 × 17,105.78
  4. Step 4: Simplify right side
    31,252.94x = 737,756,040.91
  5. Step 5: Solve for x
    x = 737,756,040.91/31,252.94
  6. Step 6: Final answer
    x = 23,605.97

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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.