Home / 38,061.20-57,156.60-28,211.60

Finding the Fourth Proportional to 38,061.20, 57,156.60 and 28,211.60

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Solution

The fourth proportional to 38,061.20, 57,156.60 and 28,211.60 is: 42,365.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,061.20 : 57,156.60 = 28,211.60 : x
  2. Step 2: Convert to fraction form
    38,061.20/57,156.60 = 28,211.60/x
  3. Step 3: Cross multiply
    38,061.20x = 57,156.60 × 28,211.60
  4. Step 4: Simplify right side
    38,061.20x = 1,612,479,136.56
  5. Step 5: Solve for x
    x = 1,612,479,136.56/38,061.20
  6. Step 6: Final answer
    x = 42,365.43

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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.