Home / 31,538.56-43,521.22-17,391.52

Finding the Fourth Proportional to 31,538.56, 43,521.22 and 17,391.52

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Solution

The fourth proportional to 31,538.56, 43,521.22 and 17,391.52 is: 23,999.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,538.56 : 43,521.22 = 17,391.52 : x
  2. Step 2: Convert to fraction form
    31,538.56/43,521.22 = 17,391.52/x
  3. Step 3: Cross multiply
    31,538.56x = 43,521.22 × 17,391.52
  4. Step 4: Simplify right side
    31,538.56x = 756,900,168.05
  5. Step 5: Solve for x
    x = 756,900,168.05/31,538.56
  6. Step 6: Final answer
    x = 23,999.20

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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.