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Finding the Fourth Proportional to 22,074.14, 30,458.88 and 12,640.88

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Solution

The fourth proportional to 22,074.14, 30,458.88 and 12,640.88 is: 17,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,074.14 : 30,458.88 = 12,640.88 : x
  2. Step 2: Convert to fraction form
    22,074.14/30,458.88 = 12,640.88/x
  3. Step 3: Cross multiply
    22,074.14x = 30,458.88 × 12,640.88
  4. Step 4: Simplify right side
    22,074.14x = 385,026,894.72
  5. Step 5: Solve for x
    x = 385,026,894.72/22,074.14
  6. Step 6: Final answer
    x = 17,442.45

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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.