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Finding the Third Proportional to 18,015.75 and 26,831.25

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Solution

The third proportional to 18,015.75 and 26,831.25 is: 39,960.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.75 : 26,831.25 = 26,831.25 : x
  2. Step 2: Convert to fraction form
    18,015.75/26,831.25 = 26,831.25/x
  3. Step 3: Cross multiply
    18,015.75x = 26,831.25 × 26,831.25
  4. Step 4: Simplify right side
    18,015.75x = 719,915,976.56
  5. Step 5: Solve for x
    x = 719,915,976.56/18,015.75
  6. Step 6: Final answer
    x = 39,960.37

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1.5x scale

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.