Home / 20,134.67-27,785.78-11,182.14

Finding the Fourth Proportional to 20,134.67, 27,785.78 and 11,182.14

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Solution

The fourth proportional to 20,134.67, 27,785.78 and 11,182.14 is: 15,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.67 : 27,785.78 = 11,182.14 : x
  2. Step 2: Convert to fraction form
    20,134.67/27,785.78 = 11,182.14/x
  3. Step 3: Cross multiply
    20,134.67x = 27,785.78 × 11,182.14
  4. Step 4: Simplify right side
    20,134.67x = 310,704,426.06
  5. Step 5: Solve for x
    x = 310,704,426.06/20,134.67
  6. Step 6: Final answer
    x = 15,431.32

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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.