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Finding the Third Proportional to 19,238 and 28,912

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Solution

The third proportional to 19,238 and 28,912 is: 43,450.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238 : 28,912 = 28,912 : x
  2. Step 2: Convert to fraction form
    19,238/28,912 = 28,912/x
  3. Step 3: Cross multiply
    19,238x = 28,912 × 28,912
  4. Step 4: Simplify right side
    19,238x = 835,903,744
  5. Step 5: Solve for x
    x = 835,903,744/19,238
  6. Step 6: Final answer
    x = 43,450.66

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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.