Home / 20,092.65-30,131.97-8,243.01

Finding the Fourth Proportional to 20,092.65, 30,131.97 and 8,243.01

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Solution

The fourth proportional to 20,092.65, 30,131.97 and 8,243.01 is: 12,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.65 : 30,131.97 = 8,243.01 : x
  2. Step 2: Convert to fraction form
    20,092.65/30,131.97 = 8,243.01/x
  3. Step 3: Cross multiply
    20,092.65x = 30,131.97 × 8,243.01
  4. Step 4: Simplify right side
    20,092.65x = 248,378,130.03
  5. Step 5: Solve for x
    x = 248,378,130.03/20,092.65
  6. Step 6: Final answer
    x = 12,361.64

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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.