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Finding the Third Proportional to 15,979.78 and 23,970.09

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Solution

The third proportional to 15,979.78 and 23,970.09 is: 35,955.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.78 : 23,970.09 = 23,970.09 : x
  2. Step 2: Convert to fraction form
    15,979.78/23,970.09 = 23,970.09/x
  3. Step 3: Cross multiply
    15,979.78x = 23,970.09 × 23,970.09
  4. Step 4: Simplify right side
    15,979.78x = 574,565,394.38
  5. Step 5: Solve for x
    x = 574,565,394.38/15,979.78
  6. Step 6: Final answer
    x = 35,955.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.