Home / 20,222.60-27,906.78-11,270.08

Finding the Fourth Proportional to 20,222.60, 27,906.78 and 11,270.08

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Solution

The fourth proportional to 20,222.60, 27,906.78 and 11,270.08 is: 15,552.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.60 : 27,906.78 = 11,270.08 : x
  2. Step 2: Convert to fraction form
    20,222.60/27,906.78 = 11,270.08/x
  3. Step 3: Cross multiply
    20,222.60x = 27,906.78 × 11,270.08
  4. Step 4: Simplify right side
    20,222.60x = 314,511,643.14
  5. Step 5: Solve for x
    x = 314,511,643.14/20,222.60
  6. Step 6: Final answer
    x = 15,552.48

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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.