Home / 42,247.20-63,351.60-18,861.60

Finding the Fourth Proportional to 42,247.20, 63,351.60 and 18,861.60

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Solution

The fourth proportional to 42,247.20, 63,351.60 and 18,861.60 is: 28,283.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,247.20 : 63,351.60 = 18,861.60 : x
  2. Step 2: Convert to fraction form
    42,247.20/63,351.60 = 18,861.60/x
  3. Step 3: Cross multiply
    42,247.20x = 63,351.60 × 18,861.60
  4. Step 4: Simplify right side
    42,247.20x = 1,194,912,538.56
  5. Step 5: Solve for x
    x = 1,194,912,538.56/42,247.20
  6. Step 6: Final answer
    x = 28,283.83

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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.