Home / 31,286.57-43,175.97-17,138.52

Finding the Fourth Proportional to 31,286.57, 43,175.97 and 17,138.52

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Solution

The fourth proportional to 31,286.57, 43,175.97 and 17,138.52 is: 23,651.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.57 : 43,175.97 = 17,138.52 : x
  2. Step 2: Convert to fraction form
    31,286.57/43,175.97 = 17,138.52/x
  3. Step 3: Cross multiply
    31,286.57x = 43,175.97 × 17,138.52
  4. Step 4: Simplify right side
    31,286.57x = 739,972,225.36
  5. Step 5: Solve for x
    x = 739,972,225.36/31,286.57
  6. Step 6: Final answer
    x = 23,651.44

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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.