Home / 26,857.35-40,286.82-12,818.86

Finding the Fourth Proportional to 26,857.35, 40,286.82 and 12,818.86

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Solution

The fourth proportional to 26,857.35, 40,286.82 and 12,818.86 is: 19,228.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,857.35 : 40,286.82 = 12,818.86 : x
  2. Step 2: Convert to fraction form
    26,857.35/40,286.82 = 12,818.86/x
  3. Step 3: Cross multiply
    26,857.35x = 40,286.82 × 12,818.86
  4. Step 4: Simplify right side
    26,857.35x = 516,430,903.99
  5. Step 5: Solve for x
    x = 516,430,903.99/26,857.35
  6. Step 6: Final answer
    x = 19,228.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.