Home / 20,133.94-27,785.20-11,182.28

Finding the Fourth Proportional to 20,133.94, 27,785.20 and 11,182.28

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Solution

The fourth proportional to 20,133.94, 27,785.20 and 11,182.28 is: 15,431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.94 : 27,785.20 = 11,182.28 : x
  2. Step 2: Convert to fraction form
    20,133.94/27,785.20 = 11,182.28/x
  3. Step 3: Cross multiply
    20,133.94x = 27,785.20 × 11,182.28
  4. Step 4: Simplify right side
    20,133.94x = 310,701,747.33
  5. Step 5: Solve for x
    x = 310,701,747.33/20,133.94
  6. Step 6: Final answer
    x = 15,431.74

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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.