Home / 20,446.62-30,669.89-6,407.73

Finding the Fourth Proportional to 20,446.62, 30,669.89 and 6,407.73

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Solution

The fourth proportional to 20,446.62, 30,669.89 and 6,407.73 is: 9,611.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.62 : 30,669.89 = 6,407.73 : x
  2. Step 2: Convert to fraction form
    20,446.62/30,669.89 = 6,407.73/x
  3. Step 3: Cross multiply
    20,446.62x = 30,669.89 × 6,407.73
  4. Step 4: Simplify right side
    20,446.62x = 196,524,374.25
  5. Step 5: Solve for x
    x = 196,524,374.25/20,446.62
  6. Step 6: Final answer
    x = 9,611.58

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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.