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Finding the Fourth Proportional to 38,469.60, 57,704.40 and 33,285.60

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Solution

The fourth proportional to 38,469.60, 57,704.40 and 33,285.60 is: 49,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,469.60 : 57,704.40 = 33,285.60 : x
  2. Step 2: Convert to fraction form
    38,469.60/57,704.40 = 33,285.60/x
  3. Step 3: Cross multiply
    38,469.60x = 57,704.40 × 33,285.60
  4. Step 4: Simplify right side
    38,469.60x = 1,920,725,576.64
  5. Step 5: Solve for x
    x = 1,920,725,576.64/38,469.60
  6. Step 6: Final answer
    x = 49,928.40

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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.