Home / 38,492.20-57,738.30-18,760.60

Finding the Fourth Proportional to 38,492.20, 57,738.30 and 18,760.60

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Solution

The fourth proportional to 38,492.20, 57,738.30 and 18,760.60 is: 28,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,492.20 : 57,738.30 = 18,760.60 : x
  2. Step 2: Convert to fraction form
    38,492.20/57,738.30 = 18,760.60/x
  3. Step 3: Cross multiply
    38,492.20x = 57,738.30 × 18,760.60
  4. Step 4: Simplify right side
    38,492.20x = 1,083,205,150.98
  5. Step 5: Solve for x
    x = 1,083,205,150.98/38,492.20
  6. Step 6: Final answer
    x = 28,140.90

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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.