Home / 31,578.24-47,382.14-13,806.60

Finding the Fourth Proportional to 31,578.24, 47,382.14 and 13,806.60

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Solution

The fourth proportional to 31,578.24, 47,382.14 and 13,806.60 is: 20,716.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578.24 : 47,382.14 = 13,806.60 : x
  2. Step 2: Convert to fraction form
    31,578.24/47,382.14 = 13,806.60/x
  3. Step 3: Cross multiply
    31,578.24x = 47,382.14 × 13,806.60
  4. Step 4: Simplify right side
    31,578.24x = 654,186,185.09
  5. Step 5: Solve for x
    x = 654,186,185.09/31,578.24
  6. Step 6: Final answer
    x = 20,716.36

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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.