Home / 31,249.14-43,115.27-17,815.49

Finding the Fourth Proportional to 31,249.14, 43,115.27 and 17,815.49

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Solution

The fourth proportional to 31,249.14, 43,115.27 and 17,815.49 is: 24,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,249.14 : 43,115.27 = 17,815.49 : x
  2. Step 2: Convert to fraction form
    31,249.14/43,115.27 = 17,815.49/x
  3. Step 3: Cross multiply
    31,249.14x = 43,115.27 × 17,815.49
  4. Step 4: Simplify right side
    31,249.14x = 768,119,861.30
  5. Step 5: Solve for x
    x = 768,119,861.30/31,249.14
  6. Step 6: Final answer
    x = 24,580.51

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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.