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Finding the Fourth Proportional to 28,893.92, 43,334.32 and 9,168.80

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Solution

The fourth proportional to 28,893.92, 43,334.32 and 9,168.80 is: 13,751.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.92 : 43,334.32 = 9,168.80 : x
  2. Step 2: Convert to fraction form
    28,893.92/43,334.32 = 9,168.80/x
  3. Step 3: Cross multiply
    28,893.92x = 43,334.32 × 9,168.80
  4. Step 4: Simplify right side
    28,893.92x = 397,323,713.22
  5. Step 5: Solve for x
    x = 397,323,713.22/28,893.92
  6. Step 6: Final answer
    x = 13,751.12

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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.