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Finding the Fourth Proportional to 28,893.64, 43,336.02 and 9,169.64

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Solution

The fourth proportional to 28,893.64, 43,336.02 and 9,169.64 is: 13,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.64 : 43,336.02 = 9,169.64 : x
  2. Step 2: Convert to fraction form
    28,893.64/43,336.02 = 9,169.64/x
  3. Step 3: Cross multiply
    28,893.64x = 43,336.02 × 9,169.64
  4. Step 4: Simplify right side
    28,893.64x = 397,375,702.43
  5. Step 5: Solve for x
    x = 397,375,702.43/28,893.64
  6. Step 6: Final answer
    x = 13,753.05

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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.