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Finding the Fourth Proportional to 22,200.17, 30,634.62 and 12,126.47

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Solution

The fourth proportional to 22,200.17, 30,634.62 and 12,126.47 is: 16,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,200.17 : 30,634.62 = 12,126.47 : x
  2. Step 2: Convert to fraction form
    22,200.17/30,634.62 = 12,126.47/x
  3. Step 3: Cross multiply
    22,200.17x = 30,634.62 × 12,126.47
  4. Step 4: Simplify right side
    22,200.17x = 371,489,647.22
  5. Step 5: Solve for x
    x = 371,489,647.22/22,200.17
  6. Step 6: Final answer
    x = 16,733.64

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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.