Home / 20,858.51-31,287.87-6,067.51

Finding the Fourth Proportional to 20,858.51, 31,287.87 and 6,067.51

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Solution

The fourth proportional to 20,858.51, 31,287.87 and 6,067.51 is: 9,101.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858.51 : 31,287.87 = 6,067.51 : x
  2. Step 2: Convert to fraction form
    20,858.51/31,287.87 = 6,067.51/x
  3. Step 3: Cross multiply
    20,858.51x = 31,287.87 × 6,067.51
  4. Step 4: Simplify right side
    20,858.51x = 189,839,385.88
  5. Step 5: Solve for x
    x = 189,839,385.88/20,858.51
  6. Step 6: Final answer
    x = 9,101.29

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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.