Home / 20,224.12-27,908.14-11,271.32

Finding the Fourth Proportional to 20,224.12, 27,908.14 and 11,271.32

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Solution

The fourth proportional to 20,224.12, 27,908.14 and 11,271.32 is: 15,553.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.12 : 27,908.14 = 11,271.32 : x
  2. Step 2: Convert to fraction form
    20,224.12/27,908.14 = 11,271.32/x
  3. Step 3: Cross multiply
    20,224.12x = 27,908.14 × 11,271.32
  4. Step 4: Simplify right side
    20,224.12x = 314,561,576.54
  5. Step 5: Solve for x
    x = 314,561,576.54/20,224.12
  6. Step 6: Final answer
    x = 15,553.78

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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.