Home / 31,717.57-43,774.91-18,286.20

Finding the Fourth Proportional to 31,717.57, 43,774.91 and 18,286.20

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Solution

The fourth proportional to 31,717.57, 43,774.91 and 18,286.20 is: 25,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,717.57 : 43,774.91 = 18,286.20 : x
  2. Step 2: Convert to fraction form
    31,717.57/43,774.91 = 18,286.20/x
  3. Step 3: Cross multiply
    31,717.57x = 43,774.91 × 18,286.20
  4. Step 4: Simplify right side
    31,717.57x = 800,476,667.81
  5. Step 5: Solve for x
    x = 800,476,667.81/31,717.57
  6. Step 6: Final answer
    x = 25,237.64

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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.