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Finding the Third Proportional to 28,942 and 43,405

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Solution

The third proportional to 28,942 and 43,405 is: 65,095.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,942 : 43,405 = 43,405 : x
  2. Step 2: Convert to fraction form
    28,942/43,405 = 43,405/x
  3. Step 3: Cross multiply
    28,942x = 43,405 × 43,405
  4. Step 4: Simplify right side
    28,942x = 1,883,994,025
  5. Step 5: Solve for x
    x = 1,883,994,025/28,942
  6. Step 6: Final answer
    x = 65,095.50

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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.