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Finding the Fourth Proportional to 28,915.96, 43,373.34 and 9,194.56

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Solution

The fourth proportional to 28,915.96, 43,373.34 and 9,194.56 is: 13,791.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.96 : 43,373.34 = 9,194.56 : x
  2. Step 2: Convert to fraction form
    28,915.96/43,373.34 = 9,194.56/x
  3. Step 3: Cross multiply
    28,915.96x = 43,373.34 × 9,194.56
  4. Step 4: Simplify right side
    28,915.96x = 398,798,777.03
  5. Step 5: Solve for x
    x = 398,798,777.03/28,915.96
  6. Step 6: Final answer
    x = 13,791.65

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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.