Home / 20,133.52-27,785.88-11,184.12

Finding the Fourth Proportional to 20,133.52, 27,785.88 and 11,184.12

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Solution

The fourth proportional to 20,133.52, 27,785.88 and 11,184.12 is: 15,434.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.52 : 27,785.88 = 11,184.12 : x
  2. Step 2: Convert to fraction form
    20,133.52/27,785.88 = 11,184.12/x
  3. Step 3: Cross multiply
    20,133.52x = 27,785.88 × 11,184.12
  4. Step 4: Simplify right side
    20,133.52x = 310,760,616.23
  5. Step 5: Solve for x
    x = 310,760,616.23/20,133.52
  6. Step 6: Final answer
    x = 15,434.99

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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.