Home / 20,076.66-30,119.03-6,929.54

Finding the Fourth Proportional to 20,076.66, 30,119.03 and 6,929.54

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Solution

The fourth proportional to 20,076.66, 30,119.03 and 6,929.54 is: 10,395.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.66 : 30,119.03 = 6,929.54 : x
  2. Step 2: Convert to fraction form
    20,076.66/30,119.03 = 6,929.54/x
  3. Step 3: Cross multiply
    20,076.66x = 30,119.03 × 6,929.54
  4. Step 4: Simplify right side
    20,076.66x = 208,711,023.15
  5. Step 5: Solve for x
    x = 208,711,023.15/20,076.66
  6. Step 6: Final answer
    x = 10,395.70

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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.