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Finding the Fourth Proportional to 22,208.76, 30,648.10 and 12,272.76

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Solution

The fourth proportional to 22,208.76, 30,648.10 and 12,272.76 is: 16,936.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,208.76 : 30,648.10 = 12,272.76 : x
  2. Step 2: Convert to fraction form
    22,208.76/30,648.10 = 12,272.76/x
  3. Step 3: Cross multiply
    22,208.76x = 30,648.10 × 12,272.76
  4. Step 4: Simplify right side
    22,208.76x = 376,136,775.76
  5. Step 5: Solve for x
    x = 376,136,775.76/22,208.76
  6. Step 6: Final answer
    x = 16,936.41

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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.