Home / 20,076.05-30,114.99-6,930.36

Finding the Fourth Proportional to 20,076.05, 30,114.99 and 6,930.36

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Solution

The fourth proportional to 20,076.05, 30,114.99 and 6,930.36 is: 10,395.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.05 : 30,114.99 = 6,930.36 : x
  2. Step 2: Convert to fraction form
    20,076.05/30,114.99 = 6,930.36/x
  3. Step 3: Cross multiply
    20,076.05x = 30,114.99 × 6,930.36
  4. Step 4: Simplify right side
    20,076.05x = 208,707,722.10
  5. Step 5: Solve for x
    x = 208,707,722.10/20,076.05
  6. Step 6: Final answer
    x = 10,395.85

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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.