Home / 20,109.05-27,753.36-11,609.47

Finding the Fourth Proportional to 20,109.05, 27,753.36 and 11,609.47

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Solution

The fourth proportional to 20,109.05, 27,753.36 and 11,609.47 is: 16,022.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.05 : 27,753.36 = 11,609.47 : x
  2. Step 2: Convert to fraction form
    20,109.05/27,753.36 = 11,609.47/x
  3. Step 3: Cross multiply
    20,109.05x = 27,753.36 × 11,609.47
  4. Step 4: Simplify right side
    20,109.05x = 322,201,791.48
  5. Step 5: Solve for x
    x = 322,201,791.48/20,109.05
  6. Step 6: Final answer
    x = 16,022.73

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1.5x scale

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.