Home / 31,455.14-47,183.31-8,080.97

Finding the Fourth Proportional to 31,455.14, 47,183.31 and 8,080.97

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Solution

The fourth proportional to 31,455.14, 47,183.31 and 8,080.97 is: 12,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.14 : 47,183.31 = 8,080.97 : x
  2. Step 2: Convert to fraction form
    31,455.14/47,183.31 = 8,080.97/x
  3. Step 3: Cross multiply
    31,455.14x = 47,183.31 × 8,080.97
  4. Step 4: Simplify right side
    31,455.14x = 381,286,676.69
  5. Step 5: Solve for x
    x = 381,286,676.69/31,455.14
  6. Step 6: Final answer
    x = 12,121.60

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1.5x scale

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.