Home / 33,187.20-49,742.40-13,452.80

Finding the Fourth Proportional to 33,187.20, 49,742.40 and 13,452.80

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Solution

The fourth proportional to 33,187.20, 49,742.40 and 13,452.80 is: 20,163.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,187.20 : 49,742.40 = 13,452.80 : x
  2. Step 2: Convert to fraction form
    33,187.20/49,742.40 = 13,452.80/x
  3. Step 3: Cross multiply
    33,187.20x = 49,742.40 × 13,452.80
  4. Step 4: Simplify right side
    33,187.20x = 669,174,558.72
  5. Step 5: Solve for x
    x = 669,174,558.72/33,187.20
  6. Step 6: Final answer
    x = 20,163.63

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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.