Home / 22,200.44-30,633.78-12,641.60

Finding the Fourth Proportional to 22,200.44, 30,633.78 and 12,641.60

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Solution

The fourth proportional to 22,200.44, 30,633.78 and 12,641.60 is: 17,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,200.44 : 30,633.78 = 12,641.60 : x
  2. Step 2: Convert to fraction form
    22,200.44/30,633.78 = 12,641.60/x
  3. Step 3: Cross multiply
    22,200.44x = 30,633.78 × 12,641.60
  4. Step 4: Simplify right side
    22,200.44x = 387,259,993.25
  5. Step 5: Solve for x
    x = 387,259,993.25/22,200.44
  6. Step 6: Final answer
    x = 17,443.80

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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.