Home / 20,272.82-30,408.06-5,480.60

Finding the Fourth Proportional to 20,272.82, 30,408.06 and 5,480.60

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Solution

The fourth proportional to 20,272.82, 30,408.06 and 5,480.60 is: 8,220.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.82 : 30,408.06 = 5,480.60 : x
  2. Step 2: Convert to fraction form
    20,272.82/30,408.06 = 5,480.60/x
  3. Step 3: Cross multiply
    20,272.82x = 30,408.06 × 5,480.60
  4. Step 4: Simplify right side
    20,272.82x = 166,654,413.64
  5. Step 5: Solve for x
    x = 166,654,413.64/20,272.82
  6. Step 6: Final answer
    x = 8,220.58

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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.