Home / 36,380.16-54,599.40-18,855

Finding the Fourth Proportional to 36,380.16, 54,599.40 and 18,855

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Solution

The fourth proportional to 36,380.16, 54,599.40 and 18,855 is: 28,297.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,380.16 : 54,599.40 = 18,855 : x
  2. Step 2: Convert to fraction form
    36,380.16/54,599.40 = 18,855/x
  3. Step 3: Cross multiply
    36,380.16x = 54,599.40 × 18,855
  4. Step 4: Simplify right side
    36,380.16x = 1,029,471,687
  5. Step 5: Solve for x
    x = 1,029,471,687/36,380.16
  6. Step 6: Final answer
    x = 28,297.61

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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.