Home / 20,203.11-30,297.37-8,517.24

Finding the Fourth Proportional to 20,203.11, 30,297.37 and 8,517.24

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Solution

The fourth proportional to 20,203.11, 30,297.37 and 8,517.24 is: 12,772.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.11 : 30,297.37 = 8,517.24 : x
  2. Step 2: Convert to fraction form
    20,203.11/30,297.37 = 8,517.24/x
  3. Step 3: Cross multiply
    20,203.11x = 30,297.37 × 8,517.24
  4. Step 4: Simplify right side
    20,203.11x = 258,049,971.66
  5. Step 5: Solve for x
    x = 258,049,971.66/20,203.11
  6. Step 6: Final answer
    x = 12,772.78

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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.