Home / 38,321.92-57,400.26-20,754.64

Finding the Fourth Proportional to 38,321.92, 57,400.26 and 20,754.64

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Solution

The fourth proportional to 38,321.92, 57,400.26 and 20,754.64 is: 31,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,321.92 : 57,400.26 = 20,754.64 : x
  2. Step 2: Convert to fraction form
    38,321.92/57,400.26 = 20,754.64/x
  3. Step 3: Cross multiply
    38,321.92x = 57,400.26 × 20,754.64
  4. Step 4: Simplify right side
    38,321.92x = 1,191,321,732.21
  5. Step 5: Solve for x
    x = 1,191,321,732.21/38,321.92
  6. Step 6: Final answer
    x = 31,087.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.