Home / 20,067.68-27,693.62-11,115.32

Finding the Fourth Proportional to 20,067.68, 27,693.62 and 11,115.32

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Solution

The fourth proportional to 20,067.68, 27,693.62 and 11,115.32 is: 15,339.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.68 : 27,693.62 = 11,115.32 : x
  2. Step 2: Convert to fraction form
    20,067.68/27,693.62 = 11,115.32/x
  3. Step 3: Cross multiply
    20,067.68x = 27,693.62 × 11,115.32
  4. Step 4: Simplify right side
    20,067.68x = 307,823,448.26
  5. Step 5: Solve for x
    x = 307,823,448.26/20,067.68
  6. Step 6: Final answer
    x = 15,339.26

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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.