Home / 20,289.11-27,997.14-11,335.37

Finding the Fourth Proportional to 20,289.11, 27,997.14 and 11,335.37

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Solution

The fourth proportional to 20,289.11, 27,997.14 and 11,335.37 is: 15,641.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289.11 : 27,997.14 = 11,335.37 : x
  2. Step 2: Convert to fraction form
    20,289.11/27,997.14 = 11,335.37/x
  3. Step 3: Cross multiply
    20,289.11x = 27,997.14 × 11,335.37
  4. Step 4: Simplify right side
    20,289.11x = 317,357,843.36
  5. Step 5: Solve for x
    x = 317,357,843.36/20,289.11
  6. Step 6: Final answer
    x = 15,641.79

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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.