Home / 31,819.85-47,735.92-12,096.87

Finding the Fourth Proportional to 31,819.85, 47,735.92 and 12,096.87

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Solution

The fourth proportional to 31,819.85, 47,735.92 and 12,096.87 is: 18,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,819.85 : 47,735.92 = 12,096.87 : x
  2. Step 2: Convert to fraction form
    31,819.85/47,735.92 = 12,096.87/x
  3. Step 3: Cross multiply
    31,819.85x = 47,735.92 × 12,096.87
  4. Step 4: Simplify right side
    31,819.85x = 577,455,222.05
  5. Step 5: Solve for x
    x = 577,455,222.05/31,819.85
  6. Step 6: Final answer
    x = 18,147.64

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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.