Home / 20,333.09-30,498.66-8,481.98

Finding the Fourth Proportional to 20,333.09, 30,498.66 and 8,481.98

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Solution

The fourth proportional to 20,333.09, 30,498.66 and 8,481.98 is: 12,722.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,333.09 : 30,498.66 = 8,481.98 : x
  2. Step 2: Convert to fraction form
    20,333.09/30,498.66 = 8,481.98/x
  3. Step 3: Cross multiply
    20,333.09x = 30,498.66 × 8,481.98
  4. Step 4: Simplify right side
    20,333.09x = 258,688,871.65
  5. Step 5: Solve for x
    x = 258,688,871.65/20,333.09
  6. Step 6: Final answer
    x = 12,722.56

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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.