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Finding the Fourth Proportional to 28,729, 43,096.02 and 7,952.68

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Solution

The fourth proportional to 28,729, 43,096.02 and 7,952.68 is: 11,929.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729 : 43,096.02 = 7,952.68 : x
  2. Step 2: Convert to fraction form
    28,729/43,096.02 = 7,952.68/x
  3. Step 3: Cross multiply
    28,729x = 43,096.02 × 7,952.68
  4. Step 4: Simplify right side
    28,729x = 342,728,856.33
  5. Step 5: Solve for x
    x = 342,728,856.33/28,729
  6. Step 6: Final answer
    x = 11,929.72

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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.