Home / 31,726.70-43,784.78-18,297.71

Finding the Fourth Proportional to 31,726.70, 43,784.78 and 18,297.71

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Solution

The fourth proportional to 31,726.70, 43,784.78 and 18,297.71 is: 25,251.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,726.70 : 43,784.78 = 18,297.71 : x
  2. Step 2: Convert to fraction form
    31,726.70/43,784.78 = 18,297.71/x
  3. Step 3: Cross multiply
    31,726.70x = 43,784.78 × 18,297.71
  4. Step 4: Simplify right side
    31,726.70x = 801,160,896.44
  5. Step 5: Solve for x
    x = 801,160,896.44/31,726.70
  6. Step 6: Final answer
    x = 25,251.95

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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.