Home / 20,662.16-30,993.59-8,975.38

Finding the Fourth Proportional to 20,662.16, 30,993.59 and 8,975.38

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Solution

The fourth proportional to 20,662.16, 30,993.59 and 8,975.38 is: 13,463.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662.16 : 30,993.59 = 8,975.38 : x
  2. Step 2: Convert to fraction form
    20,662.16/30,993.59 = 8,975.38/x
  3. Step 3: Cross multiply
    20,662.16x = 30,993.59 × 8,975.38
  4. Step 4: Simplify right side
    20,662.16x = 278,179,287.56
  5. Step 5: Solve for x
    x = 278,179,287.56/20,662.16
  6. Step 6: Final answer
    x = 13,463.22

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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.