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Finding the Fourth Proportional to 28,966.44, 43,421.86 and 9,234.12

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Solution

The fourth proportional to 28,966.44, 43,421.86 and 9,234.12 is: 13,842.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966.44 : 43,421.86 = 9,234.12 : x
  2. Step 2: Convert to fraction form
    28,966.44/43,421.86 = 9,234.12/x
  3. Step 3: Cross multiply
    28,966.44x = 43,421.86 × 9,234.12
  4. Step 4: Simplify right side
    28,966.44x = 400,962,665.86
  5. Step 5: Solve for x
    x = 400,962,665.86/28,966.44
  6. Step 6: Final answer
    x = 13,842.32

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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.