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Finding the Fourth Proportional to 30,791.82, 46,187.84 and 8,605.07

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Solution

The fourth proportional to 30,791.82, 46,187.84 and 8,605.07 is: 12,907.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,791.82 : 46,187.84 = 8,605.07 : x
  2. Step 2: Convert to fraction form
    30,791.82/46,187.84 = 8,605.07/x
  3. Step 3: Cross multiply
    30,791.82x = 46,187.84 × 8,605.07
  4. Step 4: Simplify right side
    30,791.82x = 397,449,560.13
  5. Step 5: Solve for x
    x = 397,449,560.13/30,791.82
  6. Step 6: Final answer
    x = 12,907.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.