Home / 20,610.66-28,442.69-11,179.23

Finding the Fourth Proportional to 20,610.66, 28,442.69 and 11,179.23

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Solution

The fourth proportional to 20,610.66, 28,442.69 and 11,179.23 is: 15,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.66 : 28,442.69 = 11,179.23 : x
  2. Step 2: Convert to fraction form
    20,610.66/28,442.69 = 11,179.23/x
  3. Step 3: Cross multiply
    20,610.66x = 28,442.69 × 11,179.23
  4. Step 4: Simplify right side
    20,610.66x = 317,967,317.43
  5. Step 5: Solve for x
    x = 317,967,317.43/20,610.66
  6. Step 6: Final answer
    x = 15,427.32

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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.