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Finding the Fourth Proportional to 33,289.60, 49,943.60 and 21,447.40

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Solution

The fourth proportional to 33,289.60, 49,943.60 and 21,447.40 is: 32,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,289.60 : 49,943.60 = 21,447.40 : x
  2. Step 2: Convert to fraction form
    33,289.60/49,943.60 = 21,447.40/x
  3. Step 3: Cross multiply
    33,289.60x = 49,943.60 × 21,447.40
  4. Step 4: Simplify right side
    33,289.60x = 1,071,160,366.64
  5. Step 5: Solve for x
    x = 1,071,160,366.64/33,289.60
  6. Step 6: Final answer
    x = 32,177.03

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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.