Home / 38,797.72-58,222.10-21,279.86

Finding the Fourth Proportional to 38,797.72, 58,222.10 and 21,279.86

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Solution

The fourth proportional to 38,797.72, 58,222.10 and 21,279.86 is: 31,933.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,797.72 : 58,222.10 = 21,279.86 : x
  2. Step 2: Convert to fraction form
    38,797.72/58,222.10 = 21,279.86/x
  3. Step 3: Cross multiply
    38,797.72x = 58,222.10 × 21,279.86
  4. Step 4: Simplify right side
    38,797.72x = 1,238,958,136.91
  5. Step 5: Solve for x
    x = 1,238,958,136.91/38,797.72
  6. Step 6: Final answer
    x = 31,933.79

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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.