Home / 36,789.42-55,192.36-13,415.86

Finding the Fourth Proportional to 36,789.42, 55,192.36 and 13,415.86

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Solution

The fourth proportional to 36,789.42, 55,192.36 and 13,415.86 is: 20,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,789.42 : 55,192.36 = 13,415.86 : x
  2. Step 2: Convert to fraction form
    36,789.42/55,192.36 = 13,415.86/x
  3. Step 3: Cross multiply
    36,789.42x = 55,192.36 × 13,415.86
  4. Step 4: Simplify right side
    36,789.42x = 740,452,974.83
  5. Step 5: Solve for x
    x = 740,452,974.83/36,789.42
  6. Step 6: Final answer
    x = 20,126.79

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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.