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Finding the Third Proportional to 18,936 and 41,289.75

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Solution

The third proportional to 18,936 and 41,289.75 is: 90,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936 : 41,289.75 = 41,289.75 : x
  2. Step 2: Convert to fraction form
    18,936/41,289.75 = 41,289.75/x
  3. Step 3: Cross multiply
    18,936x = 41,289.75 × 41,289.75
  4. Step 4: Simplify right side
    18,936x = 1,704,843,455.06
  5. Step 5: Solve for x
    x = 1,704,843,455.06/18,936
  6. Step 6: Final answer
    x = 90,031.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.