Home / 20,233.62-30,200.60-18,987.03

Finding the Fourth Proportional to 20,233.62, 30,200.60 and 18,987.03

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Solution

The fourth proportional to 20,233.62, 30,200.60 and 18,987.03 is: 28,339.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.62 : 30,200.60 = 18,987.03 : x
  2. Step 2: Convert to fraction form
    20,233.62/30,200.60 = 18,987.03/x
  3. Step 3: Cross multiply
    20,233.62x = 30,200.60 × 18,987.03
  4. Step 4: Simplify right side
    20,233.62x = 573,419,452.28
  5. Step 5: Solve for x
    x = 573,419,452.28/20,233.62
  6. Step 6: Final answer
    x = 28,339.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.