Home / 13,414.42-20,121.81-4,054.51

Finding the Fourth Proportional to 13,414.42, 20,121.81 and 4,054.51

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Solution

The fourth proportional to 13,414.42, 20,121.81 and 4,054.51 is: 6,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.42 : 20,121.81 = 4,054.51 : x
  2. Step 2: Convert to fraction form
    13,414.42/20,121.81 = 4,054.51/x
  3. Step 3: Cross multiply
    13,414.42x = 20,121.81 × 4,054.51
  4. Step 4: Simplify right side
    13,414.42x = 81,584,079.86
  5. Step 5: Solve for x
    x = 81,584,079.86/13,414.42
  6. Step 6: Final answer
    x = 6,081.82

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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.