Home / 20,224.80-27,909.30-11,273.28

Finding the Fourth Proportional to 20,224.80, 27,909.30 and 11,273.28

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Solution

The fourth proportional to 20,224.80, 27,909.30 and 11,273.28 is: 15,556.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.80 : 27,909.30 = 11,273.28 : x
  2. Step 2: Convert to fraction form
    20,224.80/27,909.30 = 11,273.28/x
  3. Step 3: Cross multiply
    20,224.80x = 27,909.30 × 11,273.28
  4. Step 4: Simplify right side
    20,224.80x = 314,629,353.50
  5. Step 5: Solve for x
    x = 314,629,353.50/20,224.80
  6. Step 6: Final answer
    x = 15,556.61

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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.