Home / 20,141.21-27,794.09-11,189.27

Finding the Fourth Proportional to 20,141.21, 27,794.09 and 11,189.27

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Solution

The fourth proportional to 20,141.21, 27,794.09 and 11,189.27 is: 15,440.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.21 : 27,794.09 = 11,189.27 : x
  2. Step 2: Convert to fraction form
    20,141.21/27,794.09 = 11,189.27/x
  3. Step 3: Cross multiply
    20,141.21x = 27,794.09 × 11,189.27
  4. Step 4: Simplify right side
    20,141.21x = 310,995,590.95
  5. Step 5: Solve for x
    x = 310,995,590.95/20,141.21
  6. Step 6: Final answer
    x = 15,440.76

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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.