Home / 20,222.16-27,908.84-11,270.48

Finding the Fourth Proportional to 20,222.16, 27,908.84 and 11,270.48

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Solution

The fourth proportional to 20,222.16, 27,908.84 and 11,270.48 is: 15,554.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.16 : 27,908.84 = 11,270.48 : x
  2. Step 2: Convert to fraction form
    20,222.16/27,908.84 = 11,270.48/x
  3. Step 3: Cross multiply
    20,222.16x = 27,908.84 × 11,270.48
  4. Step 4: Simplify right side
    20,222.16x = 314,546,023.04
  5. Step 5: Solve for x
    x = 314,546,023.04/20,222.16
  6. Step 6: Final answer
    x = 15,554.52

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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.