Home / 20,066.13-30,103.25-6,919.02

Finding the Fourth Proportional to 20,066.13, 30,103.25 and 6,919.02

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Solution

The fourth proportional to 20,066.13, 30,103.25 and 6,919.02 is: 10,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.13 : 30,103.25 = 6,919.02 : x
  2. Step 2: Convert to fraction form
    20,066.13/30,103.25 = 6,919.02/x
  3. Step 3: Cross multiply
    20,066.13x = 30,103.25 × 6,919.02
  4. Step 4: Simplify right side
    20,066.13x = 208,284,954.22
  5. Step 5: Solve for x
    x = 208,284,954.22/20,066.13
  6. Step 6: Final answer
    x = 10,379.93

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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.