Home / 20,251.47-27,946.99-11,298.44

Finding the Fourth Proportional to 20,251.47, 27,946.99 and 11,298.44

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Solution

The fourth proportional to 20,251.47, 27,946.99 and 11,298.44 is: 15,591.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.47 : 27,946.99 = 11,298.44 : x
  2. Step 2: Convert to fraction form
    20,251.47/27,946.99 = 11,298.44/x
  3. Step 3: Cross multiply
    20,251.47x = 27,946.99 × 11,298.44
  4. Step 4: Simplify right side
    20,251.47x = 315,757,389.70
  5. Step 5: Solve for x
    x = 315,757,389.70/20,251.47
  6. Step 6: Final answer
    x = 15,591.83

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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.