Home / 31,379.75-43,304.10-17,233.55

Finding the Fourth Proportional to 31,379.75, 43,304.10 and 17,233.55

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Solution

The fourth proportional to 31,379.75, 43,304.10 and 17,233.55 is: 23,782.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.75 : 43,304.10 = 17,233.55 : x
  2. Step 2: Convert to fraction form
    31,379.75/43,304.10 = 17,233.55/x
  3. Step 3: Cross multiply
    31,379.75x = 43,304.10 × 17,233.55
  4. Step 4: Simplify right side
    31,379.75x = 746,283,372.56
  5. Step 5: Solve for x
    x = 746,283,372.56/31,379.75
  6. Step 6: Final answer
    x = 23,782.32

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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.