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Finding the Fourth Proportional to 20,011.41, 30,006.99 and 6,679.62

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Solution

The fourth proportional to 20,011.41, 30,006.99 and 6,679.62 is: 10,016.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.41 : 30,006.99 = 6,679.62 : x
  2. Step 2: Convert to fraction form
    20,011.41/30,006.99 = 6,679.62/x
  3. Step 3: Cross multiply
    20,011.41x = 30,006.99 × 6,679.62
  4. Step 4: Simplify right side
    20,011.41x = 200,435,290.54
  5. Step 5: Solve for x
    x = 200,435,290.54/20,011.41
  6. Step 6: Final answer
    x = 10,016.05

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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.