Home / 20,021.00-27,627.05-11,067.28

Finding the Fourth Proportional to 20,021.00, 27,627.05 and 11,067.28

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Solution

The fourth proportional to 20,021.00, 27,627.05 and 11,067.28 is: 15,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.00 : 27,627.05 = 11,067.28 : x
  2. Step 2: Convert to fraction form
    20,021.00/27,627.05 = 11,067.28/x
  3. Step 3: Cross multiply
    20,021.00x = 27,627.05 × 11,067.28
  4. Step 4: Simplify right side
    20,021.00x = 305,756,380.80
  5. Step 5: Solve for x
    x = 305,756,380.80/20,021.00
  6. Step 6: Final answer
    x = 15,271.79

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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.