Home / 33,139.80-49,712.40-9,447.30

Finding the Fourth Proportional to 33,139.80, 49,712.40 and 9,447.30

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Solution

The fourth proportional to 33,139.80, 49,712.40 and 9,447.30 is: 14,171.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,139.80 : 49,712.40 = 9,447.30 : x
  2. Step 2: Convert to fraction form
    33,139.80/49,712.40 = 9,447.30/x
  3. Step 3: Cross multiply
    33,139.80x = 49,712.40 × 9,447.30
  4. Step 4: Simplify right side
    33,139.80x = 469,647,956.52
  5. Step 5: Solve for x
    x = 469,647,956.52/33,139.80
  6. Step 6: Final answer
    x = 14,171.72

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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.