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Finding the Third Proportional to 18,453.75 and 38,220.75

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Solution

The third proportional to 18,453.75 and 38,220.75 is: 79,161.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.75 : 38,220.75 = 38,220.75 : x
  2. Step 2: Convert to fraction form
    18,453.75/38,220.75 = 38,220.75/x
  3. Step 3: Cross multiply
    18,453.75x = 38,220.75 × 38,220.75
  4. Step 4: Simplify right side
    18,453.75x = 1,460,825,730.56
  5. Step 5: Solve for x
    x = 1,460,825,730.56/18,453.75
  6. Step 6: Final answer
    x = 79,161.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.