Home / 31,855.11-43,956.24-17,512.57

Finding the Fourth Proportional to 31,855.11, 43,956.24 and 17,512.57

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Solution

The fourth proportional to 31,855.11, 43,956.24 and 17,512.57 is: 24,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,855.11 : 43,956.24 = 17,512.57 : x
  2. Step 2: Convert to fraction form
    31,855.11/43,956.24 = 17,512.57/x
  3. Step 3: Cross multiply
    31,855.11x = 43,956.24 × 17,512.57
  4. Step 4: Simplify right side
    31,855.11x = 769,786,719.21
  5. Step 5: Solve for x
    x = 769,786,719.21/31,855.11
  6. Step 6: Final answer
    x = 24,165.25

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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.