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Finding the Fourth Proportional to 28,912.83, 43,339.69 and 16,406.43

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Solution

The fourth proportional to 28,912.83, 43,339.69 and 16,406.43 is: 24,592.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.83 : 43,339.69 = 16,406.43 : x
  2. Step 2: Convert to fraction form
    28,912.83/43,339.69 = 16,406.43/x
  3. Step 3: Cross multiply
    28,912.83x = 43,339.69 × 16,406.43
  4. Step 4: Simplify right side
    28,912.83x = 711,049,590.21
  5. Step 5: Solve for x
    x = 711,049,590.21/28,912.83
  6. Step 6: Final answer
    x = 24,592.88

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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.