Home / 20,067.17-30,102.74-6,917.81

Finding the Fourth Proportional to 20,067.17, 30,102.74 and 6,917.81

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Solution

The fourth proportional to 20,067.17, 30,102.74 and 6,917.81 is: 10,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.17 : 30,102.74 = 6,917.81 : x
  2. Step 2: Convert to fraction form
    20,067.17/30,102.74 = 6,917.81/x
  3. Step 3: Cross multiply
    20,067.17x = 30,102.74 × 6,917.81
  4. Step 4: Simplify right side
    20,067.17x = 208,245,001.21
  5. Step 5: Solve for x
    x = 208,245,001.21/20,067.17
  6. Step 6: Final answer
    x = 10,377.40

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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.