Home / 20,066.92-30,102.36-6,917.56

Finding the Fourth Proportional to 20,066.92, 30,102.36 and 6,917.56

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Solution

The fourth proportional to 20,066.92, 30,102.36 and 6,917.56 is: 10,377.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.92 : 30,102.36 = 6,917.56 : x
  2. Step 2: Convert to fraction form
    20,066.92/30,102.36 = 6,917.56/x
  3. Step 3: Cross multiply
    20,066.92x = 30,102.36 × 6,917.56
  4. Step 4: Simplify right side
    20,066.92x = 208,234,881.44
  5. Step 5: Solve for x
    x = 208,234,881.44/20,066.92
  6. Step 6: Final answer
    x = 10,377.02

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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.