Home / 21,770.22-30,043.26-12,338.58

Finding the Fourth Proportional to 21,770.22, 30,043.26 and 12,338.58

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Solution

The fourth proportional to 21,770.22, 30,043.26 and 12,338.58 is: 17,027.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770.22 : 30,043.26 = 12,338.58 : x
  2. Step 2: Convert to fraction form
    21,770.22/30,043.26 = 12,338.58/x
  3. Step 3: Cross multiply
    21,770.22x = 30,043.26 × 12,338.58
  4. Step 4: Simplify right side
    21,770.22x = 370,691,166.97
  5. Step 5: Solve for x
    x = 370,691,166.97/21,770.22
  6. Step 6: Final answer
    x = 17,027.44

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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.