Home / 20,076.70-30,119.83-6,929.18

Finding the Fourth Proportional to 20,076.70, 30,119.83 and 6,929.18

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Solution

The fourth proportional to 20,076.70, 30,119.83 and 6,929.18 is: 10,395.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.70 : 30,119.83 = 6,929.18 : x
  2. Step 2: Convert to fraction form
    20,076.70/30,119.83 = 6,929.18/x
  3. Step 3: Cross multiply
    20,076.70x = 30,119.83 × 6,929.18
  4. Step 4: Simplify right side
    20,076.70x = 208,705,706.32
  5. Step 5: Solve for x
    x = 208,705,706.32/20,076.70
  6. Step 6: Final answer
    x = 10,395.42

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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.