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Finding the Fourth Proportional to 20,070.26, 27,698.52 and 11,118.62

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Solution

The fourth proportional to 20,070.26, 27,698.52 and 11,118.62 is: 15,344.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.26 : 27,698.52 = 11,118.62 : x
  2. Step 2: Convert to fraction form
    20,070.26/27,698.52 = 11,118.62/x
  3. Step 3: Cross multiply
    20,070.26x = 27,698.52 × 11,118.62
  4. Step 4: Simplify right side
    20,070.26x = 307,969,179.95
  5. Step 5: Solve for x
    x = 307,969,179.95/20,070.26
  6. Step 6: Final answer
    x = 15,344.56

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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.