Home / 31,391.93-43,321.19-17,051.90

Finding the Fourth Proportional to 31,391.93, 43,321.19 and 17,051.90

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Solution

The fourth proportional to 31,391.93, 43,321.19 and 17,051.90 is: 23,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.93 : 43,321.19 = 17,051.90 : x
  2. Step 2: Convert to fraction form
    31,391.93/43,321.19 = 17,051.90/x
  3. Step 3: Cross multiply
    31,391.93x = 43,321.19 × 17,051.90
  4. Step 4: Simplify right side
    31,391.93x = 738,708,297.90
  5. Step 5: Solve for x
    x = 738,708,297.90/31,391.93
  6. Step 6: Final answer
    x = 23,531.79

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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.