Home / 20,233.56-30,350.40-7,921.56

Finding the Fourth Proportional to 20,233.56, 30,350.40 and 7,921.56

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Solution

The fourth proportional to 20,233.56, 30,350.40 and 7,921.56 is: 11,882.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.56 : 30,350.40 = 7,921.56 : x
  2. Step 2: Convert to fraction form
    20,233.56/30,350.40 = 7,921.56/x
  3. Step 3: Cross multiply
    20,233.56x = 30,350.40 × 7,921.56
  4. Step 4: Simplify right side
    20,233.56x = 240,422,514.62
  5. Step 5: Solve for x
    x = 240,422,514.62/20,233.56
  6. Step 6: Final answer
    x = 11,882.36

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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.