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Finding the Third Proportional to 18,628 and 28,590

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Solution

The third proportional to 18,628 and 28,590 is: 43,879.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628 : 28,590 = 28,590 : x
  2. Step 2: Convert to fraction form
    18,628/28,590 = 28,590/x
  3. Step 3: Cross multiply
    18,628x = 28,590 × 28,590
  4. Step 4: Simplify right side
    18,628x = 817,388,100
  5. Step 5: Solve for x
    x = 817,388,100/18,628
  6. Step 6: Final answer
    x = 43,879.54

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.