Home / 20,146.14-30,198.96-7,662.96

Finding the Fourth Proportional to 20,146.14, 30,198.96 and 7,662.96

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Solution

The fourth proportional to 20,146.14, 30,198.96 and 7,662.96 is: 11,486.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.14 : 30,198.96 = 7,662.96 : x
  2. Step 2: Convert to fraction form
    20,146.14/30,198.96 = 7,662.96/x
  3. Step 3: Cross multiply
    20,146.14x = 30,198.96 × 7,662.96
  4. Step 4: Simplify right side
    20,146.14x = 231,413,422.52
  5. Step 5: Solve for x
    x = 231,413,422.52/20,146.14
  6. Step 6: Final answer
    x = 11,486.74

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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.