Home / 31,716.52-43,768.70-18,287.66

Finding the Fourth Proportional to 31,716.52, 43,768.70 and 18,287.66

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Solution

The fourth proportional to 31,716.52, 43,768.70 and 18,287.66 is: 25,236.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,716.52 : 43,768.70 = 18,287.66 : x
  2. Step 2: Convert to fraction form
    31,716.52/43,768.70 = 18,287.66/x
  3. Step 3: Cross multiply
    31,716.52x = 43,768.70 × 18,287.66
  4. Step 4: Simplify right side
    31,716.52x = 800,427,104.24
  5. Step 5: Solve for x
    x = 800,427,104.24/31,716.52
  6. Step 6: Final answer
    x = 25,236.91

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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.