Home / 31,425.71-43,366.36-17,278.44

Finding the Fourth Proportional to 31,425.71, 43,366.36 and 17,278.44

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Solution

The fourth proportional to 31,425.71, 43,366.36 and 17,278.44 is: 23,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,425.71 : 43,366.36 = 17,278.44 : x
  2. Step 2: Convert to fraction form
    31,425.71/43,366.36 = 17,278.44/x
  3. Step 3: Cross multiply
    31,425.71x = 43,366.36 × 17,278.44
  4. Step 4: Simplify right side
    31,425.71x = 749,303,049.28
  5. Step 5: Solve for x
    x = 749,303,049.28/31,425.71
  6. Step 6: Final answer
    x = 23,843.63

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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.