Home / 38,481.12-57,671.20-19,745.28

Finding the Fourth Proportional to 38,481.12, 57,671.20 and 19,745.28

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Solution

The fourth proportional to 38,481.12, 57,671.20 and 19,745.28 is: 29,592.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,481.12 : 57,671.20 = 19,745.28 : x
  2. Step 2: Convert to fraction form
    38,481.12/57,671.20 = 19,745.28/x
  3. Step 3: Cross multiply
    38,481.12x = 57,671.20 × 19,745.28
  4. Step 4: Simplify right side
    38,481.12x = 1,138,733,991.94
  5. Step 5: Solve for x
    x = 1,138,733,991.94/38,481.12
  6. Step 6: Final answer
    x = 29,592.02

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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.