Home / 22,043.36-30,419.74-11,971.72

Finding the Fourth Proportional to 22,043.36, 30,419.74 and 11,971.72

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Solution

The fourth proportional to 22,043.36, 30,419.74 and 11,971.72 is: 16,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,043.36 : 30,419.74 = 11,971.72 : x
  2. Step 2: Convert to fraction form
    22,043.36/30,419.74 = 11,971.72/x
  3. Step 3: Cross multiply
    22,043.36x = 30,419.74 × 11,971.72
  4. Step 4: Simplify right side
    22,043.36x = 364,176,662.74
  5. Step 5: Solve for x
    x = 364,176,662.74/22,043.36
  6. Step 6: Final answer
    x = 16,520.92

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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.