Home / 31,786.22-43,867.08-18,358.04

Finding the Fourth Proportional to 31,786.22, 43,867.08 and 18,358.04

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Solution

The fourth proportional to 31,786.22, 43,867.08 and 18,358.04 is: 25,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786.22 : 43,867.08 = 18,358.04 : x
  2. Step 2: Convert to fraction form
    31,786.22/43,867.08 = 18,358.04/x
  3. Step 3: Cross multiply
    31,786.22x = 43,867.08 × 18,358.04
  4. Step 4: Simplify right side
    31,786.22x = 805,313,609.32
  5. Step 5: Solve for x
    x = 805,313,609.32/31,786.22
  6. Step 6: Final answer
    x = 25,335.31

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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.