Home / 20,904.44-31,358.66-6,864.51

Finding the Fourth Proportional to 20,904.44, 31,358.66 and 6,864.51

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Solution

The fourth proportional to 20,904.44, 31,358.66 and 6,864.51 is: 10,297.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.44 : 31,358.66 = 6,864.51 : x
  2. Step 2: Convert to fraction form
    20,904.44/31,358.66 = 6,864.51/x
  3. Step 3: Cross multiply
    20,904.44x = 31,358.66 × 6,864.51
  4. Step 4: Simplify right side
    20,904.44x = 215,261,835.16
  5. Step 5: Solve for x
    x = 215,261,835.16/20,904.44
  6. Step 6: Final answer
    x = 10,297.42

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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.