Home / 39,052.70-53,892.78-21,147.73

Finding the Fourth Proportional to 39,052.70, 53,892.78 and 21,147.73

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Solution

The fourth proportional to 39,052.70, 53,892.78 and 21,147.73 is: 29,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,052.70 : 53,892.78 = 21,147.73 : x
  2. Step 2: Convert to fraction form
    39,052.70/53,892.78 = 21,147.73/x
  3. Step 3: Cross multiply
    39,052.70x = 53,892.78 × 21,147.73
  4. Step 4: Simplify right side
    39,052.70x = 1,139,710,049.50
  5. Step 5: Solve for x
    x = 1,139,710,049.50/39,052.70
  6. Step 6: Final answer
    x = 29,183.90

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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.