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Finding the Third Proportional to 18,838 and 28,501

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Solution

The third proportional to 18,838 and 28,501 is: 43,120.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838 : 28,501 = 28,501 : x
  2. Step 2: Convert to fraction form
    18,838/28,501 = 28,501/x
  3. Step 3: Cross multiply
    18,838x = 28,501 × 28,501
  4. Step 4: Simplify right side
    18,838x = 812,307,001
  5. Step 5: Solve for x
    x = 812,307,001/18,838
  6. Step 6: Final answer
    x = 43,120.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.