Home / 33,530.80-50,328.60-20,408.80

Finding the Fourth Proportional to 33,530.80, 50,328.60 and 20,408.80

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Solution

The fourth proportional to 33,530.80, 50,328.60 and 20,408.80 is: 30,632.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,530.80 : 50,328.60 = 20,408.80 : x
  2. Step 2: Convert to fraction form
    33,530.80/50,328.60 = 20,408.80/x
  3. Step 3: Cross multiply
    33,530.80x = 50,328.60 × 20,408.80
  4. Step 4: Simplify right side
    33,530.80x = 1,027,146,331.68
  5. Step 5: Solve for x
    x = 1,027,146,331.68/33,530.80
  6. Step 6: Final answer
    x = 30,632.92

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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.