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Finding the Third Proportional to 19,068 and 28,511

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Solution

The third proportional to 19,068 and 28,511 is: 42,630.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,068 : 28,511 = 28,511 : x
  2. Step 2: Convert to fraction form
    19,068/28,511 = 28,511/x
  3. Step 3: Cross multiply
    19,068x = 28,511 × 28,511
  4. Step 4: Simplify right side
    19,068x = 812,877,121
  5. Step 5: Solve for x
    x = 812,877,121/19,068
  6. Step 6: Final answer
    x = 42,630.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.