Home / 31,896.36-47,813.31-11,891.21

Finding the Fourth Proportional to 31,896.36, 47,813.31 and 11,891.21

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Solution

The fourth proportional to 31,896.36, 47,813.31 and 11,891.21 is: 17,825.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,896.36 : 47,813.31 = 11,891.21 : x
  2. Step 2: Convert to fraction form
    31,896.36/47,813.31 = 11,891.21/x
  3. Step 3: Cross multiply
    31,896.36x = 47,813.31 × 11,891.21
  4. Step 4: Simplify right side
    31,896.36x = 568,557,870.94
  5. Step 5: Solve for x
    x = 568,557,870.94/31,896.36
  6. Step 6: Final answer
    x = 17,825.16

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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.