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Finding the Fourth Proportional to 22,376.30, 30,881.00 and 12,819.22

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Solution

The fourth proportional to 22,376.30, 30,881.00 and 12,819.22 is: 17,691.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,376.30 : 30,881.00 = 12,819.22 : x
  2. Step 2: Convert to fraction form
    22,376.30/30,881.00 = 12,819.22/x
  3. Step 3: Cross multiply
    22,376.30x = 30,881.00 × 12,819.22
  4. Step 4: Simplify right side
    22,376.30x = 395,870,287.67
  5. Step 5: Solve for x
    x = 395,870,287.67/22,376.30
  6. Step 6: Final answer
    x = 17,691.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.