Home / 20,516.76-30,750.84-9,414.09

Finding the Fourth Proportional to 20,516.76, 30,750.84 and 9,414.09

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Solution

The fourth proportional to 20,516.76, 30,750.84 and 9,414.09 is: 14,109.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.76 : 30,750.84 = 9,414.09 : x
  2. Step 2: Convert to fraction form
    20,516.76/30,750.84 = 9,414.09/x
  3. Step 3: Cross multiply
    20,516.76x = 30,750.84 × 9,414.09
  4. Step 4: Simplify right side
    20,516.76x = 289,491,175.34
  5. Step 5: Solve for x
    x = 289,491,175.34/20,516.76
  6. Step 6: Final answer
    x = 14,109.98

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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.