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Finding the Fourth Proportional to 30,691.44, 46,038.15 and 8,505.03

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Solution

The fourth proportional to 30,691.44, 46,038.15 and 8,505.03 is: 12,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,691.44 : 46,038.15 = 8,505.03 : x
  2. Step 2: Convert to fraction form
    30,691.44/46,038.15 = 8,505.03/x
  3. Step 3: Cross multiply
    30,691.44x = 46,038.15 × 8,505.03
  4. Step 4: Simplify right side
    30,691.44x = 391,555,846.89
  5. Step 5: Solve for x
    x = 391,555,846.89/30,691.44
  6. Step 6: Final answer
    x = 12,757.82

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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.