Home / 31,721.94-43,776.09-18,293.04

Finding the Fourth Proportional to 31,721.94, 43,776.09 and 18,293.04

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Solution

The fourth proportional to 31,721.94, 43,776.09 and 18,293.04 is: 25,244.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.94 : 43,776.09 = 18,293.04 : x
  2. Step 2: Convert to fraction form
    31,721.94/43,776.09 = 18,293.04/x
  3. Step 3: Cross multiply
    31,721.94x = 43,776.09 × 18,293.04
  4. Step 4: Simplify right side
    31,721.94x = 800,797,765.41
  5. Step 5: Solve for x
    x = 800,797,765.41/31,721.94
  6. Step 6: Final answer
    x = 25,244.29

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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.