Home / 20,231.15-30,327.13-7,741.56

Finding the Fourth Proportional to 20,231.15, 30,327.13 and 7,741.56

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Solution

The fourth proportional to 20,231.15, 30,327.13 and 7,741.56 is: 11,604.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.15 : 30,327.13 = 7,741.56 : x
  2. Step 2: Convert to fraction form
    20,231.15/30,327.13 = 7,741.56/x
  3. Step 3: Cross multiply
    20,231.15x = 30,327.13 × 7,741.56
  4. Step 4: Simplify right side
    20,231.15x = 234,779,296.52
  5. Step 5: Solve for x
    x = 234,779,296.52/20,231.15
  6. Step 6: Final answer
    x = 11,604.84

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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.