Home / 31,391.80-43,321.64-17,967.37

Finding the Fourth Proportional to 31,391.80, 43,321.64 and 17,967.37

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Solution

The fourth proportional to 31,391.80, 43,321.64 and 17,967.37 is: 24,795.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.80 : 43,321.64 = 17,967.37 : x
  2. Step 2: Convert to fraction form
    31,391.80/43,321.64 = 17,967.37/x
  3. Step 3: Cross multiply
    31,391.80x = 43,321.64 × 17,967.37
  4. Step 4: Simplify right side
    31,391.80x = 778,375,817.97
  5. Step 5: Solve for x
    x = 778,375,817.97/31,391.80
  6. Step 6: Final answer
    x = 24,795.51

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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.