Home / 20,067.69-30,085.16-11,727.21

Finding the Fourth Proportional to 20,067.69, 30,085.16 and 11,727.21

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Solution

The fourth proportional to 20,067.69, 30,085.16 and 11,727.21 is: 17,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.69 : 30,085.16 = 11,727.21 : x
  2. Step 2: Convert to fraction form
    20,067.69/30,085.16 = 11,727.21/x
  3. Step 3: Cross multiply
    20,067.69x = 30,085.16 × 11,727.21
  4. Step 4: Simplify right side
    20,067.69x = 352,814,930.57
  5. Step 5: Solve for x
    x = 352,814,930.57/20,067.69
  6. Step 6: Final answer
    x = 17,581.24

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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.