Home / 33,311.11-49,987.50-20,855.45

Finding the Fourth Proportional to 33,311.11, 49,987.50 and 20,855.45

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Solution

The fourth proportional to 33,311.11, 49,987.50 and 20,855.45 is: 31,296.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,311.11 : 49,987.50 = 20,855.45 : x
  2. Step 2: Convert to fraction form
    33,311.11/49,987.50 = 20,855.45/x
  3. Step 3: Cross multiply
    33,311.11x = 49,987.50 × 20,855.45
  4. Step 4: Simplify right side
    33,311.11x = 1,042,511,806.88
  5. Step 5: Solve for x
    x = 1,042,511,806.88/33,311.11
  6. Step 6: Final answer
    x = 31,296.22

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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.