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Finding the Third Proportional to 18,948 and 28,424

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Solution

The third proportional to 18,948 and 28,424 is: 42,639.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948 : 28,424 = 28,424 : x
  2. Step 2: Convert to fraction form
    18,948/28,424 = 28,424/x
  3. Step 3: Cross multiply
    18,948x = 28,424 × 28,424
  4. Step 4: Simplify right side
    18,948x = 807,923,776
  5. Step 5: Solve for x
    x = 807,923,776/18,948
  6. Step 6: Final answer
    x = 42,639.00

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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.