Home / 20,202.66-27,879.48-11,249.64

Finding the Fourth Proportional to 20,202.66, 27,879.48 and 11,249.64

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Solution

The fourth proportional to 20,202.66, 27,879.48 and 11,249.64 is: 15,524.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202.66 : 27,879.48 = 11,249.64 : x
  2. Step 2: Convert to fraction form
    20,202.66/27,879.48 = 11,249.64/x
  3. Step 3: Cross multiply
    20,202.66x = 27,879.48 × 11,249.64
  4. Step 4: Simplify right side
    20,202.66x = 313,634,113.39
  5. Step 5: Solve for x
    x = 313,634,113.39/20,202.66
  6. Step 6: Final answer
    x = 15,524.40

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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.