Home / 19,986-27,581.12-11,033.48

Finding the Fourth Proportional to 19,986, 27,581.12 and 11,033.48

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Solution

The fourth proportional to 19,986, 27,581.12 and 11,033.48 is: 15,226.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,986 : 27,581.12 = 11,033.48 : x
  2. Step 2: Convert to fraction form
    19,986/27,581.12 = 11,033.48/x
  3. Step 3: Cross multiply
    19,986x = 27,581.12 × 11,033.48
  4. Step 4: Simplify right side
    19,986x = 304,315,735.90
  5. Step 5: Solve for x
    x = 304,315,735.90/19,986
  6. Step 6: Final answer
    x = 15,226.45

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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.