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Finding the Third Proportional to 27,255 and 39,985

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Solution

The third proportional to 27,255 and 39,985 is: 58,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,255 : 39,985 = 39,985 : x
  2. Step 2: Convert to fraction form
    27,255/39,985 = 39,985/x
  3. Step 3: Cross multiply
    27,255x = 39,985 × 39,985
  4. Step 4: Simplify right side
    27,255x = 1,598,800,225
  5. Step 5: Solve for x
    x = 1,598,800,225/27,255
  6. Step 6: Final answer
    x = 58,660.80

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.