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Finding the Fourth Proportional to 28,894.64, 43,337.52 and 9,170.64

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Solution

The fourth proportional to 28,894.64, 43,337.52 and 9,170.64 is: 13,754.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,894.64 : 43,337.52 = 9,170.64 : x
  2. Step 2: Convert to fraction form
    28,894.64/43,337.52 = 9,170.64/x
  3. Step 3: Cross multiply
    28,894.64x = 43,337.52 × 9,170.64
  4. Step 4: Simplify right side
    28,894.64x = 397,432,794.41
  5. Step 5: Solve for x
    x = 397,432,794.41/28,894.64
  6. Step 6: Final answer
    x = 13,754.55

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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.