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Finding the Fourth Proportional to 15,322.72, 23,003.52 and 13,028.80

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Solution

The fourth proportional to 15,322.72, 23,003.52 and 13,028.80 is: 19,559.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.72 : 23,003.52 = 13,028.80 : x
  2. Step 2: Convert to fraction form
    15,322.72/23,003.52 = 13,028.80/x
  3. Step 3: Cross multiply
    15,322.72x = 23,003.52 × 13,028.80
  4. Step 4: Simplify right side
    15,322.72x = 299,708,261.38
  5. Step 5: Solve for x
    x = 299,708,261.38/15,322.72
  6. Step 6: Final answer
    x = 19,559.73

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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.