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Finding the Third Proportional to 12,549.66 and 19,431.84

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Solution

The third proportional to 12,549.66 and 19,431.84 is: 30,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.66 : 19,431.84 = 19,431.84 : x
  2. Step 2: Convert to fraction form
    12,549.66/19,431.84 = 19,431.84/x
  3. Step 3: Cross multiply
    12,549.66x = 19,431.84 × 19,431.84
  4. Step 4: Simplify right side
    12,549.66x = 377,596,551.52
  5. Step 5: Solve for x
    x = 377,596,551.52/12,549.66
  6. Step 6: Final answer
    x = 30,088.20

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.