Home / 31,195.13-46,789.25-7,821.56

Finding the Fourth Proportional to 31,195.13, 46,789.25 and 7,821.56

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Solution

The fourth proportional to 31,195.13, 46,789.25 and 7,821.56 is: 11,731.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,195.13 : 46,789.25 = 7,821.56 : x
  2. Step 2: Convert to fraction form
    31,195.13/46,789.25 = 7,821.56/x
  3. Step 3: Cross multiply
    31,195.13x = 46,789.25 × 7,821.56
  4. Step 4: Simplify right side
    31,195.13x = 365,965,004.10
  5. Step 5: Solve for x
    x = 365,965,004.10/31,195.13
  6. Step 6: Final answer
    x = 11,731.48

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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.