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Finding the Third Proportional to 18,580 and 25,990

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Solution

The third proportional to 18,580 and 25,990 is: 36,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580 : 25,990 = 25,990 : x
  2. Step 2: Convert to fraction form
    18,580/25,990 = 25,990/x
  3. Step 3: Cross multiply
    18,580x = 25,990 × 25,990
  4. Step 4: Simplify right side
    18,580x = 675,480,100
  5. Step 5: Solve for x
    x = 675,480,100/18,580
  6. Step 6: Final answer
    x = 36,355.23

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.