Home / 13,771.42-20,656.95-3,383.26

Finding the Fourth Proportional to 13,771.42, 20,656.95 and 3,383.26

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Solution

The fourth proportional to 13,771.42, 20,656.95 and 3,383.26 is: 5,074.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.42 : 20,656.95 = 3,383.26 : x
  2. Step 2: Convert to fraction form
    13,771.42/20,656.95 = 3,383.26/x
  3. Step 3: Cross multiply
    13,771.42x = 20,656.95 × 3,383.26
  4. Step 4: Simplify right side
    13,771.42x = 69,887,832.66
  5. Step 5: Solve for x
    x = 69,887,832.66/13,771.42
  6. Step 6: Final answer
    x = 5,074.85

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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.