Home / 31,726.26-43,781.64-18,298.08

Finding the Fourth Proportional to 31,726.26, 43,781.64 and 18,298.08

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Solution

The fourth proportional to 31,726.26, 43,781.64 and 18,298.08 is: 25,251.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,726.26 : 43,781.64 = 18,298.08 : x
  2. Step 2: Convert to fraction form
    31,726.26/43,781.64 = 18,298.08/x
  3. Step 3: Cross multiply
    31,726.26x = 43,781.64 × 18,298.08
  4. Step 4: Simplify right side
    31,726.26x = 801,119,951.25
  5. Step 5: Solve for x
    x = 801,119,951.25/31,726.26
  6. Step 6: Final answer
    x = 25,251.01

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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.