Home / 20,067.80-30,091.60-11,750.48

Finding the Fourth Proportional to 20,067.80, 30,091.60 and 11,750.48

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Solution

The fourth proportional to 20,067.80, 30,091.60 and 11,750.48 is: 17,619.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.80 : 30,091.60 = 11,750.48 : x
  2. Step 2: Convert to fraction form
    20,067.80/30,091.60 = 11,750.48/x
  3. Step 3: Cross multiply
    20,067.80x = 30,091.60 × 11,750.48
  4. Step 4: Simplify right side
    20,067.80x = 353,590,743.97
  5. Step 5: Solve for x
    x = 353,590,743.97/20,067.80
  6. Step 6: Final answer
    x = 17,619.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.