Home / 31,905.30-47,858.00-8,531.73

Finding the Fourth Proportional to 31,905.30, 47,858.00 and 8,531.73

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Solution

The fourth proportional to 31,905.30, 47,858.00 and 8,531.73 is: 12,797.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,905.30 : 47,858.00 = 8,531.73 : x
  2. Step 2: Convert to fraction form
    31,905.30/47,858.00 = 8,531.73/x
  3. Step 3: Cross multiply
    31,905.30x = 47,858.00 × 8,531.73
  4. Step 4: Simplify right side
    31,905.30x = 408,311,491.68
  5. Step 5: Solve for x
    x = 408,311,491.68/31,905.30
  6. Step 6: Final answer
    x = 12,797.61

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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.