Home / 31,511.20-43,485.47-17,171.04

Finding the Fourth Proportional to 31,511.20, 43,485.47 and 17,171.04

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Solution

The fourth proportional to 31,511.20, 43,485.47 and 17,171.04 is: 23,696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.20 : 43,485.47 = 17,171.04 : x
  2. Step 2: Convert to fraction form
    31,511.20/43,485.47 = 17,171.04/x
  3. Step 3: Cross multiply
    31,511.20x = 43,485.47 × 17,171.04
  4. Step 4: Simplify right side
    31,511.20x = 746,690,441.51
  5. Step 5: Solve for x
    x = 746,690,441.51/31,511.20
  6. Step 6: Final answer
    x = 23,696.03

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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.