Home / 31,414.49-43,358.30-18,665.22

Finding the Fourth Proportional to 31,414.49, 43,358.30 and 18,665.22

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Solution

The fourth proportional to 31,414.49, 43,358.30 and 18,665.22 is: 25,761.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,414.49 : 43,358.30 = 18,665.22 : x
  2. Step 2: Convert to fraction form
    31,414.49/43,358.30 = 18,665.22/x
  3. Step 3: Cross multiply
    31,414.49x = 43,358.30 × 18,665.22
  4. Step 4: Simplify right side
    31,414.49x = 809,292,208.33
  5. Step 5: Solve for x
    x = 809,292,208.33/31,414.49
  6. Step 6: Final answer
    x = 25,761.75

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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.