Home / 22,183.11-30,611.07-12,111.75

Finding the Fourth Proportional to 22,183.11, 30,611.07 and 12,111.75

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Solution

The fourth proportional to 22,183.11, 30,611.07 and 12,111.75 is: 16,713.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,183.11 : 30,611.07 = 12,111.75 : x
  2. Step 2: Convert to fraction form
    22,183.11/30,611.07 = 12,111.75/x
  3. Step 3: Cross multiply
    22,183.11x = 30,611.07 × 12,111.75
  4. Step 4: Simplify right side
    22,183.11x = 370,753,627.07
  5. Step 5: Solve for x
    x = 370,753,627.07/22,183.11
  6. Step 6: Final answer
    x = 16,713.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.