Home / 20,447.62-30,674.67-6,406.54

Finding the Fourth Proportional to 20,447.62, 30,674.67 and 6,406.54

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Solution

The fourth proportional to 20,447.62, 30,674.67 and 6,406.54 is: 9,610.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.62 : 30,674.67 = 6,406.54 : x
  2. Step 2: Convert to fraction form
    20,447.62/30,674.67 = 6,406.54/x
  3. Step 3: Cross multiply
    20,447.62x = 30,674.67 × 6,406.54
  4. Step 4: Simplify right side
    20,447.62x = 196,518,500.34
  5. Step 5: Solve for x
    x = 196,518,500.34/20,447.62
  6. Step 6: Final answer
    x = 9,610.83

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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.