Home / 20,086.11-27,716.99-11,133.18

Finding the Fourth Proportional to 20,086.11, 27,716.99 and 11,133.18

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Solution

The fourth proportional to 20,086.11, 27,716.99 and 11,133.18 is: 15,362.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.11 : 27,716.99 = 11,133.18 : x
  2. Step 2: Convert to fraction form
    20,086.11/27,716.99 = 11,133.18/x
  3. Step 3: Cross multiply
    20,086.11x = 27,716.99 × 11,133.18
  4. Step 4: Simplify right side
    20,086.11x = 308,578,183.06
  5. Step 5: Solve for x
    x = 308,578,183.06/20,086.11
  6. Step 6: Final answer
    x = 15,362.76

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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.