Home / 20,867.38-31,301.39-6,076.42

Finding the Fourth Proportional to 20,867.38, 31,301.39 and 6,076.42

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Solution

The fourth proportional to 20,867.38, 31,301.39 and 6,076.42 is: 9,114.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867.38 : 31,301.39 = 6,076.42 : x
  2. Step 2: Convert to fraction form
    20,867.38/31,301.39 = 6,076.42/x
  3. Step 3: Cross multiply
    20,867.38x = 31,301.39 × 6,076.42
  4. Step 4: Simplify right side
    20,867.38x = 190,200,329.16
  5. Step 5: Solve for x
    x = 190,200,329.16/20,867.38
  6. Step 6: Final answer
    x = 9,114.72

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1.5x scale

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.