Home / 22,193.60-30,627.05-12,121.92

Finding the Fourth Proportional to 22,193.60, 30,627.05 and 12,121.92

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Solution

The fourth proportional to 22,193.60, 30,627.05 and 12,121.92 is: 16,728.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,193.60 : 30,627.05 = 12,121.92 : x
  2. Step 2: Convert to fraction form
    22,193.60/30,627.05 = 12,121.92/x
  3. Step 3: Cross multiply
    22,193.60x = 30,627.05 × 12,121.92
  4. Step 4: Simplify right side
    22,193.60x = 371,258,589.33
  5. Step 5: Solve for x
    x = 371,258,589.33/22,193.60
  6. Step 6: Final answer
    x = 16,728.19

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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.