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Finding the Third Proportional to 7,209 and 17,447.91

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Solution

The third proportional to 7,209 and 17,447.91 is: 42,229.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209 : 17,447.91 = 17,447.91 : x
  2. Step 2: Convert to fraction form
    7,209/17,447.91 = 17,447.91/x
  3. Step 3: Cross multiply
    7,209x = 17,447.91 × 17,447.91
  4. Step 4: Simplify right side
    7,209x = 304,429,432.51
  5. Step 5: Solve for x
    x = 304,429,432.51/7,209
  6. Step 6: Final answer
    x = 42,229.08

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.