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Finding the Third Proportional to 19,071 and 28,518.75

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Solution

The third proportional to 19,071 and 28,518.75 is: 42,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,071 : 28,518.75 = 28,518.75 : x
  2. Step 2: Convert to fraction form
    19,071/28,518.75 = 28,518.75/x
  3. Step 3: Cross multiply
    19,071x = 28,518.75 × 28,518.75
  4. Step 4: Simplify right side
    19,071x = 813,319,101.56
  5. Step 5: Solve for x
    x = 813,319,101.56/19,071
  6. Step 6: Final answer
    x = 42,646.90

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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.