Home / 31,726.08-43,781.72-18,297.09

Finding the Fourth Proportional to 31,726.08, 43,781.72 and 18,297.09

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Solution

The fourth proportional to 31,726.08, 43,781.72 and 18,297.09 is: 25,249.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,726.08 : 43,781.72 = 18,297.09 : x
  2. Step 2: Convert to fraction form
    31,726.08/43,781.72 = 18,297.09/x
  3. Step 3: Cross multiply
    31,726.08x = 43,781.72 × 18,297.09
  4. Step 4: Simplify right side
    31,726.08x = 801,077,979.71
  5. Step 5: Solve for x
    x = 801,077,979.71/31,726.08
  6. Step 6: Final answer
    x = 25,249.83

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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.