Home / 31,904.92-47,857.38-8,530.75

Finding the Fourth Proportional to 31,904.92, 47,857.38 and 8,530.75

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Solution

The fourth proportional to 31,904.92, 47,857.38 and 8,530.75 is: 12,796.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,904.92 : 47,857.38 = 8,530.75 : x
  2. Step 2: Convert to fraction form
    31,904.92/47,857.38 = 8,530.75/x
  3. Step 3: Cross multiply
    31,904.92x = 47,857.38 × 8,530.75
  4. Step 4: Simplify right side
    31,904.92x = 408,259,344.44
  5. Step 5: Solve for x
    x = 408,259,344.44/31,904.92
  6. Step 6: Final answer
    x = 12,796.13

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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.