Home / 20,176.39-27,843.64-11,101.87

Finding the Fourth Proportional to 20,176.39, 27,843.64 and 11,101.87

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Solution

The fourth proportional to 20,176.39, 27,843.64 and 11,101.87 is: 15,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.39 : 27,843.64 = 11,101.87 : x
  2. Step 2: Convert to fraction form
    20,176.39/27,843.64 = 11,101.87/x
  3. Step 3: Cross multiply
    20,176.39x = 27,843.64 × 11,101.87
  4. Step 4: Simplify right side
    20,176.39x = 309,116,416.10
  5. Step 5: Solve for x
    x = 309,116,416.10/20,176.39
  6. Step 6: Final answer
    x = 15,320.70

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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.