Home / 38,507.92-57,769.08-12,205.60

Finding the Fourth Proportional to 38,507.92, 57,769.08 and 12,205.60

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Solution

The fourth proportional to 38,507.92, 57,769.08 and 12,205.60 is: 18,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,507.92 : 57,769.08 = 12,205.60 : x
  2. Step 2: Convert to fraction form
    38,507.92/57,769.08 = 12,205.60/x
  3. Step 3: Cross multiply
    38,507.92x = 57,769.08 × 12,205.60
  4. Step 4: Simplify right side
    38,507.92x = 705,106,282.85
  5. Step 5: Solve for x
    x = 705,106,282.85/38,507.92
  6. Step 6: Final answer
    x = 18,310.68

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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.