Home / 20,067.86-27,693.34-10,993.15

Finding the Fourth Proportional to 20,067.86, 27,693.34 and 10,993.15

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Solution

The fourth proportional to 20,067.86, 27,693.34 and 10,993.15 is: 15,170.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.86 : 27,693.34 = 10,993.15 : x
  2. Step 2: Convert to fraction form
    20,067.86/27,693.34 = 10,993.15/x
  3. Step 3: Cross multiply
    20,067.86x = 27,693.34 × 10,993.15
  4. Step 4: Simplify right side
    20,067.86x = 304,436,847.19
  5. Step 5: Solve for x
    x = 304,436,847.19/20,067.86
  6. Step 6: Final answer
    x = 15,170.37

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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.