Home / 20,181.82-30,272.38-9,080.66

Finding the Fourth Proportional to 20,181.82, 30,272.38 and 9,080.66

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Solution

The fourth proportional to 20,181.82, 30,272.38 and 9,080.66 is: 13,620.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.82 : 30,272.38 = 9,080.66 : x
  2. Step 2: Convert to fraction form
    20,181.82/30,272.38 = 9,080.66/x
  3. Step 3: Cross multiply
    20,181.82x = 30,272.38 × 9,080.66
  4. Step 4: Simplify right side
    20,181.82x = 274,893,190.17
  5. Step 5: Solve for x
    x = 274,893,190.17/20,181.82
  6. Step 6: Final answer
    x = 13,620.83

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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.