Home / 26,786.85-40,114.67-18,869.91

Finding the Fourth Proportional to 26,786.85, 40,114.67 and 18,869.91

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Solution

The fourth proportional to 26,786.85, 40,114.67 and 18,869.91 is: 28,258.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,786.85 : 40,114.67 = 18,869.91 : x
  2. Step 2: Convert to fraction form
    26,786.85/40,114.67 = 18,869.91/x
  3. Step 3: Cross multiply
    26,786.85x = 40,114.67 × 18,869.91
  4. Step 4: Simplify right side
    26,786.85x = 756,960,118.23
  5. Step 5: Solve for x
    x = 756,960,118.23/26,786.85
  6. Step 6: Final answer
    x = 28,258.65

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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.