Home / 31,544.70-47,310.09-12,819.79

Finding the Fourth Proportional to 31,544.70, 47,310.09 and 12,819.79

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Solution

The fourth proportional to 31,544.70, 47,310.09 and 12,819.79 is: 19,226.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,544.70 : 47,310.09 = 12,819.79 : x
  2. Step 2: Convert to fraction form
    31,544.70/47,310.09 = 12,819.79/x
  3. Step 3: Cross multiply
    31,544.70x = 47,310.09 × 12,819.79
  4. Step 4: Simplify right side
    31,544.70x = 606,505,418.68
  5. Step 5: Solve for x
    x = 606,505,418.68/31,544.70
  6. Step 6: Final answer
    x = 19,226.86

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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.