Home / 20,869.66-31,304.54-6,078.94

Finding the Fourth Proportional to 20,869.66, 31,304.54 and 6,078.94

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Solution

The fourth proportional to 20,869.66, 31,304.54 and 6,078.94 is: 9,118.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869.66 : 31,304.54 = 6,078.94 : x
  2. Step 2: Convert to fraction form
    20,869.66/31,304.54 = 6,078.94/x
  3. Step 3: Cross multiply
    20,869.66x = 31,304.54 × 6,078.94
  4. Step 4: Simplify right side
    20,869.66x = 190,298,420.39
  5. Step 5: Solve for x
    x = 190,298,420.39/20,869.66
  6. Step 6: Final answer
    x = 9,118.42

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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.