Home / 20,243.26-27,936.12-11,291.14

Finding the Fourth Proportional to 20,243.26, 27,936.12 and 11,291.14

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Solution

The fourth proportional to 20,243.26, 27,936.12 and 11,291.14 is: 15,582.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.26 : 27,936.12 = 11,291.14 : x
  2. Step 2: Convert to fraction form
    20,243.26/27,936.12 = 11,291.14/x
  3. Step 3: Cross multiply
    20,243.26x = 27,936.12 × 11,291.14
  4. Step 4: Simplify right side
    20,243.26x = 315,430,641.98
  5. Step 5: Solve for x
    x = 315,430,641.98/20,243.26
  6. Step 6: Final answer
    x = 15,582.01

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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.