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Finding the Fourth Proportional to 33,865.40, 50,806.20 and 16,320.80

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Solution

The fourth proportional to 33,865.40, 50,806.20 and 16,320.80 is: 24,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,865.40 : 50,806.20 = 16,320.80 : x
  2. Step 2: Convert to fraction form
    33,865.40/50,806.20 = 16,320.80/x
  3. Step 3: Cross multiply
    33,865.40x = 50,806.20 × 16,320.80
  4. Step 4: Simplify right side
    33,865.40x = 829,197,828.96
  5. Step 5: Solve for x
    x = 829,197,828.96/33,865.40
  6. Step 6: Final answer
    x = 24,485.10

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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.