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Finding the Third Proportional to 18,103.50 and 28,977.75

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Solution

The third proportional to 18,103.50 and 28,977.75 is: 46,383.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.50 : 28,977.75 = 28,977.75 : x
  2. Step 2: Convert to fraction form
    18,103.50/28,977.75 = 28,977.75/x
  3. Step 3: Cross multiply
    18,103.50x = 28,977.75 × 28,977.75
  4. Step 4: Simplify right side
    18,103.50x = 839,709,995.06
  5. Step 5: Solve for x
    x = 839,709,995.06/18,103.50
  6. Step 6: Final answer
    x = 46,383.85

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.