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Finding the Third Proportional to 19,155 and 28,179

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Solution

The third proportional to 19,155 and 28,179 is: 41,454.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155 : 28,179 = 28,179 : x
  2. Step 2: Convert to fraction form
    19,155/28,179 = 28,179/x
  3. Step 3: Cross multiply
    19,155x = 28,179 × 28,179
  4. Step 4: Simplify right side
    19,155x = 794,056,041
  5. Step 5: Solve for x
    x = 794,056,041/19,155
  6. Step 6: Final answer
    x = 41,454.24

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.