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Finding the Third Proportional to 19,235.50 and 28,979.75

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Solution

The third proportional to 19,235.50 and 28,979.75 is: 43,660.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235.50 : 28,979.75 = 28,979.75 : x
  2. Step 2: Convert to fraction form
    19,235.50/28,979.75 = 28,979.75/x
  3. Step 3: Cross multiply
    19,235.50x = 28,979.75 × 28,979.75
  4. Step 4: Simplify right side
    19,235.50x = 839,825,910.06
  5. Step 5: Solve for x
    x = 839,825,910.06/19,235.50
  6. Step 6: Final answer
    x = 43,660.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.