Home / 13,382.39-20,074.58-4,021.66

Finding the Fourth Proportional to 13,382.39, 20,074.58 and 4,021.66

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Solution

The fourth proportional to 13,382.39, 20,074.58 and 4,021.66 is: 6,032.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.39 : 20,074.58 = 4,021.66 : x
  2. Step 2: Convert to fraction form
    13,382.39/20,074.58 = 4,021.66/x
  3. Step 3: Cross multiply
    13,382.39x = 20,074.58 × 4,021.66
  4. Step 4: Simplify right side
    13,382.39x = 80,733,080.19
  5. Step 5: Solve for x
    x = 80,733,080.19/13,382.39
  6. Step 6: Final answer
    x = 6,032.79

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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.