Home / 38,631.87-57,973.80-13,671.84

Finding the Fourth Proportional to 38,631.87, 57,973.80 and 13,671.84

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Solution

The fourth proportional to 38,631.87, 57,973.80 and 13,671.84 is: 20,516.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.87 : 57,973.80 = 13,671.84 : x
  2. Step 2: Convert to fraction form
    38,631.87/57,973.80 = 13,671.84/x
  3. Step 3: Cross multiply
    38,631.87x = 57,973.80 × 13,671.84
  4. Step 4: Simplify right side
    38,631.87x = 792,608,517.79
  5. Step 5: Solve for x
    x = 792,608,517.79/38,631.87
  6. Step 6: Final answer
    x = 20,516.96

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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.