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Finding the Fourth Proportional to 28,696, 43,060.44 and 11,163.60

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Solution

The fourth proportional to 28,696, 43,060.44 and 11,163.60 is: 16,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,696 : 43,060.44 = 11,163.60 : x
  2. Step 2: Convert to fraction form
    28,696/43,060.44 = 11,163.60/x
  3. Step 3: Cross multiply
    28,696x = 43,060.44 × 11,163.60
  4. Step 4: Simplify right side
    28,696x = 480,709,527.98
  5. Step 5: Solve for x
    x = 480,709,527.98/28,696
  6. Step 6: Final answer
    x = 16,751.80

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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.