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Finding the Fourth Proportional to 48,622, 72,933 and 15,790

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Solution

The fourth proportional to 48,622, 72,933 and 15,790 is: 23,685

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,622 : 72,933 = 15,790 : x
  2. Step 2: Convert to fraction form
    48,622/72,933 = 15,790/x
  3. Step 3: Cross multiply
    48,622x = 72,933 × 15,790
  4. Step 4: Simplify right side
    48,622x = 1,151,612,070
  5. Step 5: Solve for x
    x = 1,151,612,070/48,622
  6. Step 6: Final answer
    x = 23,685

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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.