Home / 20,204.24-27,881.22-11,251.55

Finding the Fourth Proportional to 20,204.24, 27,881.22 and 11,251.55

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Solution

The fourth proportional to 20,204.24, 27,881.22 and 11,251.55 is: 15,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.24 : 27,881.22 = 11,251.55 : x
  2. Step 2: Convert to fraction form
    20,204.24/27,881.22 = 11,251.55/x
  3. Step 3: Cross multiply
    20,204.24x = 27,881.22 × 11,251.55
  4. Step 4: Simplify right side
    20,204.24x = 313,706,940.89
  5. Step 5: Solve for x
    x = 313,706,940.89/20,204.24
  6. Step 6: Final answer
    x = 15,526.79

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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.