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Finding the Fourth Proportional to 22,157.39, 30,577.97 and 12,086.39

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Solution

The fourth proportional to 22,157.39, 30,577.97 and 12,086.39 is: 16,679.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,157.39 : 30,577.97 = 12,086.39 : x
  2. Step 2: Convert to fraction form
    22,157.39/30,577.97 = 12,086.39/x
  3. Step 3: Cross multiply
    22,157.39x = 30,577.97 × 12,086.39
  4. Step 4: Simplify right side
    22,157.39x = 369,577,377.49
  5. Step 5: Solve for x
    x = 369,577,377.49/22,157.39
  6. Step 6: Final answer
    x = 16,679.64

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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.