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Finding the Fourth Proportional to 31,755.67, 47,629.84 and 8,383.93

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Solution

The fourth proportional to 31,755.67, 47,629.84 and 8,383.93 is: 12,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,755.67 : 47,629.84 = 8,383.93 : x
  2. Step 2: Convert to fraction form
    31,755.67/47,629.84 = 8,383.93/x
  3. Step 3: Cross multiply
    31,755.67x = 47,629.84 × 8,383.93
  4. Step 4: Simplify right side
    31,755.67x = 399,325,244.47
  5. Step 5: Solve for x
    x = 399,325,244.47/31,755.67
  6. Step 6: Final answer
    x = 12,574.93

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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.