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Finding the Third Proportional to 18,117 and 28,049.63

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Solution

The third proportional to 18,117 and 28,049.63 is: 43,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117 : 28,049.63 = 28,049.63 : x
  2. Step 2: Convert to fraction form
    18,117/28,049.63 = 28,049.63/x
  3. Step 3: Cross multiply
    18,117x = 28,049.63 × 28,049.63
  4. Step 4: Simplify right side
    18,117x = 786,781,462.64
  5. Step 5: Solve for x
    x = 786,781,462.64/18,117
  6. Step 6: Final answer
    x = 43,427.80

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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.