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Finding the Fourth Proportional to 22,042.52, 30,418.58 and 11,970.88

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Solution

The fourth proportional to 22,042.52, 30,418.58 and 11,970.88 is: 16,519.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,042.52 : 30,418.58 = 11,970.88 : x
  2. Step 2: Convert to fraction form
    22,042.52/30,418.58 = 11,970.88/x
  3. Step 3: Cross multiply
    22,042.52x = 30,418.58 × 11,970.88
  4. Step 4: Simplify right side
    22,042.52x = 364,137,170.95
  5. Step 5: Solve for x
    x = 364,137,170.95/22,042.52
  6. Step 6: Final answer
    x = 16,519.76

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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.