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Finding the Fourth Proportional to 33,969.96, 50,951.70 and 20,815.56

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Solution

The fourth proportional to 33,969.96, 50,951.70 and 20,815.56 is: 31,221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,969.96 : 50,951.70 = 20,815.56 : x
  2. Step 2: Convert to fraction form
    33,969.96/50,951.70 = 20,815.56/x
  3. Step 3: Cross multiply
    33,969.96x = 50,951.70 × 20,815.56
  4. Step 4: Simplify right side
    33,969.96x = 1,060,588,168.45
  5. Step 5: Solve for x
    x = 1,060,588,168.45/33,969.96
  6. Step 6: Final answer
    x = 31,221.35

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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.