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Finding the Fourth Proportional to 19,322.80, 29,027.40 and 18,535.60

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Solution

The fourth proportional to 19,322.80, 29,027.40 and 18,535.60 is: 27,844.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,322.80 : 29,027.40 = 18,535.60 : x
  2. Step 2: Convert to fraction form
    19,322.80/29,027.40 = 18,535.60/x
  3. Step 3: Cross multiply
    19,322.80x = 29,027.40 × 18,535.60
  4. Step 4: Simplify right side
    19,322.80x = 538,040,275.44
  5. Step 5: Solve for x
    x = 538,040,275.44/19,322.80
  6. Step 6: Final answer
    x = 27,844.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.