Home / 31,867.74-43,982.91-18,439.38

Finding the Fourth Proportional to 31,867.74, 43,982.91 and 18,439.38

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Solution

The fourth proportional to 31,867.74, 43,982.91 and 18,439.38 is: 25,449.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,867.74 : 43,982.91 = 18,439.38 : x
  2. Step 2: Convert to fraction form
    31,867.74/43,982.91 = 18,439.38/x
  3. Step 3: Cross multiply
    31,867.74x = 43,982.91 × 18,439.38
  4. Step 4: Simplify right side
    31,867.74x = 811,017,591.00
  5. Step 5: Solve for x
    x = 811,017,591.00/31,867.74
  6. Step 6: Final answer
    x = 25,449.49

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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.