Home / 20,687.79-31,027.01-5,896.38

Finding the Fourth Proportional to 20,687.79, 31,027.01 and 5,896.38

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Solution

The fourth proportional to 20,687.79, 31,027.01 and 5,896.38 is: 8,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687.79 : 31,027.01 = 5,896.38 : x
  2. Step 2: Convert to fraction form
    20,687.79/31,027.01 = 5,896.38/x
  3. Step 3: Cross multiply
    20,687.79x = 31,027.01 × 5,896.38
  4. Step 4: Simplify right side
    20,687.79x = 182,947,011.74
  5. Step 5: Solve for x
    x = 182,947,011.74/20,687.79
  6. Step 6: Final answer
    x = 8,843.24

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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.