Home / 20,099.62-27,739.14-11,150

Finding the Fourth Proportional to 20,099.62, 27,739.14 and 11,150

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Solution

The fourth proportional to 20,099.62, 27,739.14 and 11,150 is: 15,387.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.62 : 27,739.14 = 11,150 : x
  2. Step 2: Convert to fraction form
    20,099.62/27,739.14 = 11,150/x
  3. Step 3: Cross multiply
    20,099.62x = 27,739.14 × 11,150
  4. Step 4: Simplify right side
    20,099.62x = 309,291,411
  5. Step 5: Solve for x
    x = 309,291,411/20,099.62
  6. Step 6: Final answer
    x = 15,387.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.