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Finding the Third Proportional to 15,438 and 23,055

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Solution

The third proportional to 15,438 and 23,055 is: 34,430.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438 : 23,055 = 23,055 : x
  2. Step 2: Convert to fraction form
    15,438/23,055 = 23,055/x
  3. Step 3: Cross multiply
    15,438x = 23,055 × 23,055
  4. Step 4: Simplify right side
    15,438x = 531,533,025
  5. Step 5: Solve for x
    x = 531,533,025/15,438
  6. Step 6: Final answer
    x = 34,430.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.