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Finding the Fourth Proportional to 22,242.68, 33,380.40 and 17,912.40

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Solution

The fourth proportional to 22,242.68, 33,380.40 and 17,912.40 is: 26,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,242.68 : 33,380.40 = 17,912.40 : x
  2. Step 2: Convert to fraction form
    22,242.68/33,380.40 = 17,912.40/x
  3. Step 3: Cross multiply
    22,242.68x = 33,380.40 × 17,912.40
  4. Step 4: Simplify right side
    22,242.68x = 597,923,076.96
  5. Step 5: Solve for x
    x = 597,923,076.96/22,242.68
  6. Step 6: Final answer
    x = 26,881.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.