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Finding the Third Proportional to 19,497.80 and 27,861.47

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Solution

The third proportional to 19,497.80 and 27,861.47 is: 39,812.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,497.80 : 27,861.47 = 27,861.47 : x
  2. Step 2: Convert to fraction form
    19,497.80/27,861.47 = 27,861.47/x
  3. Step 3: Cross multiply
    19,497.80x = 27,861.47 × 27,861.47
  4. Step 4: Simplify right side
    19,497.80x = 776,261,440.91
  5. Step 5: Solve for x
    x = 776,261,440.91/19,497.80
  6. Step 6: Final answer
    x = 39,812.78

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.