Home / 38,163.40-57,245.10-28,321.90

Finding the Fourth Proportional to 38,163.40, 57,245.10 and 28,321.90

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Solution

The fourth proportional to 38,163.40, 57,245.10 and 28,321.90 is: 42,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,163.40 : 57,245.10 = 28,321.90 : x
  2. Step 2: Convert to fraction form
    38,163.40/57,245.10 = 28,321.90/x
  3. Step 3: Cross multiply
    38,163.40x = 57,245.10 × 28,321.90
  4. Step 4: Simplify right side
    38,163.40x = 1,621,289,997.69
  5. Step 5: Solve for x
    x = 1,621,289,997.69/38,163.40
  6. Step 6: Final answer
    x = 42,482.85

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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.