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Finding the Fourth Proportional to 28,993.78, 43,489.28 and 10,273.50

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Solution

The fourth proportional to 28,993.78, 43,489.28 and 10,273.50 is: 15,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,993.78 : 43,489.28 = 10,273.50 : x
  2. Step 2: Convert to fraction form
    28,993.78/43,489.28 = 10,273.50/x
  3. Step 3: Cross multiply
    28,993.78x = 43,489.28 × 10,273.50
  4. Step 4: Simplify right side
    28,993.78x = 446,787,118.08
  5. Step 5: Solve for x
    x = 446,787,118.08/28,993.78
  6. Step 6: Final answer
    x = 15,409.76

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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.