Home / 38,506.20-57,763.80-12,213.60

Finding the Fourth Proportional to 38,506.20, 57,763.80 and 12,213.60

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Solution

The fourth proportional to 38,506.20, 57,763.80 and 12,213.60 is: 18,321.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,506.20 : 57,763.80 = 12,213.60 : x
  2. Step 2: Convert to fraction form
    38,506.20/57,763.80 = 12,213.60/x
  3. Step 3: Cross multiply
    38,506.20x = 57,763.80 × 12,213.60
  4. Step 4: Simplify right side
    38,506.20x = 705,503,947.68
  5. Step 5: Solve for x
    x = 705,503,947.68/38,506.20
  6. Step 6: Final answer
    x = 18,321.83

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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.