Home / 20,149.82-30,230.40-7,003.52

Finding the Fourth Proportional to 20,149.82, 30,230.40 and 7,003.52

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Solution

The fourth proportional to 20,149.82, 30,230.40 and 7,003.52 is: 10,507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.82 : 30,230.40 = 7,003.52 : x
  2. Step 2: Convert to fraction form
    20,149.82/30,230.40 = 7,003.52/x
  3. Step 3: Cross multiply
    20,149.82x = 30,230.40 × 7,003.52
  4. Step 4: Simplify right side
    20,149.82x = 211,719,211.01
  5. Step 5: Solve for x
    x = 211,719,211.01/20,149.82
  6. Step 6: Final answer
    x = 10,507.25

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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.