Home / 38,293.20-57,441.60-11,998.80

Finding the Fourth Proportional to 38,293.20, 57,441.60 and 11,998.80

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Solution

The fourth proportional to 38,293.20, 57,441.60 and 11,998.80 is: 17,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,293.20 : 57,441.60 = 11,998.80 : x
  2. Step 2: Convert to fraction form
    38,293.20/57,441.60 = 11,998.80/x
  3. Step 3: Cross multiply
    38,293.20x = 57,441.60 × 11,998.80
  4. Step 4: Simplify right side
    38,293.20x = 689,230,270.08
  5. Step 5: Solve for x
    x = 689,230,270.08/38,293.20
  6. Step 6: Final answer
    x = 17,998.76

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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.