Home / 13,922.28-20,879.32-4,058.45

Finding the Fourth Proportional to 13,922.28, 20,879.32 and 4,058.45

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Solution

The fourth proportional to 13,922.28, 20,879.32 and 4,058.45 is: 6,086.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.28 : 20,879.32 = 4,058.45 : x
  2. Step 2: Convert to fraction form
    13,922.28/20,879.32 = 4,058.45/x
  3. Step 3: Cross multiply
    13,922.28x = 20,879.32 × 4,058.45
  4. Step 4: Simplify right side
    13,922.28x = 84,737,765.06
  5. Step 5: Solve for x
    x = 84,737,765.06/13,922.28
  6. Step 6: Final answer
    x = 6,086.49

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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.