Home / 31,511.67-43,485.91-17,171.47

Finding the Fourth Proportional to 31,511.67, 43,485.91 and 17,171.47

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Solution

The fourth proportional to 31,511.67, 43,485.91 and 17,171.47 is: 23,696.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.67 : 43,485.91 = 17,171.47 : x
  2. Step 2: Convert to fraction form
    31,511.67/43,485.91 = 17,171.47/x
  3. Step 3: Cross multiply
    31,511.67x = 43,485.91 × 17,171.47
  4. Step 4: Simplify right side
    31,511.67x = 746,716,998.99
  5. Step 5: Solve for x
    x = 746,716,998.99/31,511.67
  6. Step 6: Final answer
    x = 23,696.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.