Home / 20,161.96-27,824.44-11,209.33

Finding the Fourth Proportional to 20,161.96, 27,824.44 and 11,209.33

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Solution

The fourth proportional to 20,161.96, 27,824.44 and 11,209.33 is: 15,469.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.96 : 27,824.44 = 11,209.33 : x
  2. Step 2: Convert to fraction form
    20,161.96/27,824.44 = 11,209.33/x
  3. Step 3: Cross multiply
    20,161.96x = 27,824.44 × 11,209.33
  4. Step 4: Simplify right side
    20,161.96x = 311,893,232.44
  5. Step 5: Solve for x
    x = 311,893,232.44/20,161.96
  6. Step 6: Final answer
    x = 15,469.39

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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.