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Finding the Third Proportional to 18,660.69 and 28,559.14

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Solution

The third proportional to 18,660.69 and 28,559.14 is: 43,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.69 : 28,559.14 = 28,559.14 : x
  2. Step 2: Convert to fraction form
    18,660.69/28,559.14 = 28,559.14/x
  3. Step 3: Cross multiply
    18,660.69x = 28,559.14 × 28,559.14
  4. Step 4: Simplify right side
    18,660.69x = 815,624,736.36
  5. Step 5: Solve for x
    x = 815,624,736.36/18,660.69
  6. Step 6: Final answer
    x = 43,708.17

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.