Home / 20,613.28-30,912.60-7,462.24

Finding the Fourth Proportional to 20,613.28, 30,912.60 and 7,462.24

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Solution

The fourth proportional to 20,613.28, 30,912.60 and 7,462.24 is: 11,190.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,613.28 : 30,912.60 = 7,462.24 : x
  2. Step 2: Convert to fraction form
    20,613.28/30,912.60 = 7,462.24/x
  3. Step 3: Cross multiply
    20,613.28x = 30,912.60 × 7,462.24
  4. Step 4: Simplify right side
    20,613.28x = 230,677,240.22
  5. Step 5: Solve for x
    x = 230,677,240.22/20,613.28
  6. Step 6: Final answer
    x = 11,190.71

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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.