Home / 31,793.70-47,672.55-12,072.90

Finding the Fourth Proportional to 31,793.70, 47,672.55 and 12,072.90

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Solution

The fourth proportional to 31,793.70, 47,672.55 and 12,072.90 is: 18,102.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,793.70 : 47,672.55 = 12,072.90 : x
  2. Step 2: Convert to fraction form
    31,793.70/47,672.55 = 12,072.90/x
  3. Step 3: Cross multiply
    31,793.70x = 47,672.55 × 12,072.90
  4. Step 4: Simplify right side
    31,793.70x = 575,545,928.90
  5. Step 5: Solve for x
    x = 575,545,928.90/31,793.70
  6. Step 6: Final answer
    x = 18,102.51

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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.