Home / 22,351.44-30,845.79-12,280.23

Finding the Fourth Proportional to 22,351.44, 30,845.79 and 12,280.23

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Solution

The fourth proportional to 22,351.44, 30,845.79 and 12,280.23 is: 16,947.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,351.44 : 30,845.79 = 12,280.23 : x
  2. Step 2: Convert to fraction form
    22,351.44/30,845.79 = 12,280.23/x
  3. Step 3: Cross multiply
    22,351.44x = 30,845.79 × 12,280.23
  4. Step 4: Simplify right side
    22,351.44x = 378,793,395.73
  5. Step 5: Solve for x
    x = 378,793,395.73/22,351.44
  6. Step 6: Final answer
    x = 16,947.16

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Double scale
Find fourth proportional to 22,352.44, 30,847.17 and 12,281.23
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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.