Home / 31,511.43-43,485.22-17,171.39

Finding the Fourth Proportional to 31,511.43, 43,485.22 and 17,171.39

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Solution

The fourth proportional to 31,511.43, 43,485.22 and 17,171.39 is: 23,696.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.43 : 43,485.22 = 17,171.39 : x
  2. Step 2: Convert to fraction form
    31,511.43/43,485.22 = 17,171.39/x
  3. Step 3: Cross multiply
    31,511.43x = 43,485.22 × 17,171.39
  4. Step 4: Simplify right side
    31,511.43x = 746,701,460.84
  5. Step 5: Solve for x
    x = 746,701,460.84/31,511.43
  6. Step 6: Final answer
    x = 23,696.21

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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.