Home / 20,867.70-31,306.69-6,076.75

Finding the Fourth Proportional to 20,867.70, 31,306.69 and 6,076.75

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Solution

The fourth proportional to 20,867.70, 31,306.69 and 6,076.75 is: 9,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867.70 : 31,306.69 = 6,076.75 : x
  2. Step 2: Convert to fraction form
    20,867.70/31,306.69 = 6,076.75/x
  3. Step 3: Cross multiply
    20,867.70x = 31,306.69 × 6,076.75
  4. Step 4: Simplify right side
    20,867.70x = 190,242,928.46
  5. Step 5: Solve for x
    x = 190,242,928.46/20,867.70
  6. Step 6: Final answer
    x = 9,116.62

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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.