Home / 20,119.13-30,175.26-5,329.55

Finding the Fourth Proportional to 20,119.13, 30,175.26 and 5,329.55

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Solution

The fourth proportional to 20,119.13, 30,175.26 and 5,329.55 is: 7,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.13 : 30,175.26 = 5,329.55 : x
  2. Step 2: Convert to fraction form
    20,119.13/30,175.26 = 5,329.55/x
  3. Step 3: Cross multiply
    20,119.13x = 30,175.26 × 5,329.55
  4. Step 4: Simplify right side
    20,119.13x = 160,820,556.93
  5. Step 5: Solve for x
    x = 160,820,556.93/20,119.13
  6. Step 6: Final answer
    x = 7,993.42

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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.