Home / 20,516.76-30,747.06-11,144.52

Finding the Fourth Proportional to 20,516.76, 30,747.06 and 11,144.52

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Solution

The fourth proportional to 20,516.76, 30,747.06 and 11,144.52 is: 16,701.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.76 : 30,747.06 = 11,144.52 : x
  2. Step 2: Convert to fraction form
    20,516.76/30,747.06 = 11,144.52/x
  3. Step 3: Cross multiply
    20,516.76x = 30,747.06 × 11,144.52
  4. Step 4: Simplify right side
    20,516.76x = 342,661,225.11
  5. Step 5: Solve for x
    x = 342,661,225.11/20,516.76
  6. Step 6: Final answer
    x = 16,701.53

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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.