Home / 20,516.48-30,771.92-7,366.96

Finding the Fourth Proportional to 20,516.48, 30,771.92 and 7,366.96

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Solution

The fourth proportional to 20,516.48, 30,771.92 and 7,366.96 is: 11,049.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.48 : 30,771.92 = 7,366.96 : x
  2. Step 2: Convert to fraction form
    20,516.48/30,771.92 = 7,366.96/x
  3. Step 3: Cross multiply
    20,516.48x = 30,771.92 × 7,366.96
  4. Step 4: Simplify right side
    20,516.48x = 226,695,503.76
  5. Step 5: Solve for x
    x = 226,695,503.76/20,516.48
  6. Step 6: Final answer
    x = 11,049.43

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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.