Home / 20,493.06-28,280.43-11,540.64

Finding the Fourth Proportional to 20,493.06, 28,280.43 and 11,540.64

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Solution

The fourth proportional to 20,493.06, 28,280.43 and 11,540.64 is: 15,926.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493.06 : 28,280.43 = 11,540.64 : x
  2. Step 2: Convert to fraction form
    20,493.06/28,280.43 = 11,540.64/x
  3. Step 3: Cross multiply
    20,493.06x = 28,280.43 × 11,540.64
  4. Step 4: Simplify right side
    20,493.06x = 326,374,261.68
  5. Step 5: Solve for x
    x = 326,374,261.68/20,493.06
  6. Step 6: Final answer
    x = 15,926.09

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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.