Home / 31,819.80-47,729.70-11,043.30

Finding the Fourth Proportional to 31,819.80, 47,729.70 and 11,043.30

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Solution

The fourth proportional to 31,819.80, 47,729.70 and 11,043.30 is: 16,564.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,819.80 : 47,729.70 = 11,043.30 : x
  2. Step 2: Convert to fraction form
    31,819.80/47,729.70 = 11,043.30/x
  3. Step 3: Cross multiply
    31,819.80x = 47,729.70 × 11,043.30
  4. Step 4: Simplify right side
    31,819.80x = 527,093,396.01
  5. Step 5: Solve for x
    x = 527,093,396.01/31,819.80
  6. Step 6: Final answer
    x = 16,564.95

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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.