Home / 22,186.40-33,247.20-18,881.60

Finding the Fourth Proportional to 22,186.40, 33,247.20 and 18,881.60

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Solution

The fourth proportional to 22,186.40, 33,247.20 and 18,881.60 is: 28,294.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,186.40 : 33,247.20 = 18,881.60 : x
  2. Step 2: Convert to fraction form
    22,186.40/33,247.20 = 18,881.60/x
  3. Step 3: Cross multiply
    22,186.40x = 33,247.20 × 18,881.60
  4. Step 4: Simplify right side
    22,186.40x = 627,760,331.52
  5. Step 5: Solve for x
    x = 627,760,331.52/22,186.40
  6. Step 6: Final answer
    x = 28,294.83

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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.