Home / 31,423.55-47,137.14-8,049.38

Finding the Fourth Proportional to 31,423.55, 47,137.14 and 8,049.38

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Solution

The fourth proportional to 31,423.55, 47,137.14 and 8,049.38 is: 12,074.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,423.55 : 47,137.14 = 8,049.38 : x
  2. Step 2: Convert to fraction form
    31,423.55/47,137.14 = 8,049.38/x
  3. Step 3: Cross multiply
    31,423.55x = 47,137.14 × 8,049.38
  4. Step 4: Simplify right side
    31,423.55x = 379,424,516.29
  5. Step 5: Solve for x
    x = 379,424,516.29/31,423.55
  6. Step 6: Final answer
    x = 12,074.53

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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.