Home / 39,624.62-54,683.37-21,719.61

Finding the Fourth Proportional to 39,624.62, 54,683.37 and 21,719.61

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Solution

The fourth proportional to 39,624.62, 54,683.37 and 21,719.61 is: 29,973.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,624.62 : 54,683.37 = 21,719.61 : x
  2. Step 2: Convert to fraction form
    39,624.62/54,683.37 = 21,719.61/x
  3. Step 3: Cross multiply
    39,624.62x = 54,683.37 × 21,719.61
  4. Step 4: Simplify right side
    39,624.62x = 1,187,701,469.89
  5. Step 5: Solve for x
    x = 1,187,701,469.89/39,624.62
  6. Step 6: Final answer
    x = 29,973.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.