Home / 20,238.05-30,356.88-11,353.37

Finding the Fourth Proportional to 20,238.05, 30,356.88 and 11,353.37

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Solution

The fourth proportional to 20,238.05, 30,356.88 and 11,353.37 is: 17,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.05 : 30,356.88 = 11,353.37 : x
  2. Step 2: Convert to fraction form
    20,238.05/30,356.88 = 11,353.37/x
  3. Step 3: Cross multiply
    20,238.05x = 30,356.88 × 11,353.37
  4. Step 4: Simplify right side
    20,238.05x = 344,652,738.90
  5. Step 5: Solve for x
    x = 344,652,738.90/20,238.05
  6. Step 6: Final answer
    x = 17,029.94

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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.