Home / 20,488.26-30,707.02-9,949.65

Finding the Fourth Proportional to 20,488.26, 30,707.02 and 9,949.65

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Solution

The fourth proportional to 20,488.26, 30,707.02 and 9,949.65 is: 14,912.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.26 : 30,707.02 = 9,949.65 : x
  2. Step 2: Convert to fraction form
    20,488.26/30,707.02 = 9,949.65/x
  3. Step 3: Cross multiply
    20,488.26x = 30,707.02 × 9,949.65
  4. Step 4: Simplify right side
    20,488.26x = 305,524,201.35
  5. Step 5: Solve for x
    x = 305,524,201.35/20,488.26
  6. Step 6: Final answer
    x = 14,912.16

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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.