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Finding the Third Proportional to 18,256 and 25,435

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Solution

The third proportional to 18,256 and 25,435 is: 35,437.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,256 : 25,435 = 25,435 : x
  2. Step 2: Convert to fraction form
    18,256/25,435 = 25,435/x
  3. Step 3: Cross multiply
    18,256x = 25,435 × 25,435
  4. Step 4: Simplify right side
    18,256x = 646,939,225
  5. Step 5: Solve for x
    x = 646,939,225/18,256
  6. Step 6: Final answer
    x = 35,437.07

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.