Home / 20,099.03-30,150.05-6,772.10

Finding the Fourth Proportional to 20,099.03, 30,150.05 and 6,772.10

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Solution

The fourth proportional to 20,099.03, 30,150.05 and 6,772.10 is: 10,158.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.03 : 30,150.05 = 6,772.10 : x
  2. Step 2: Convert to fraction form
    20,099.03/30,150.05 = 6,772.10/x
  3. Step 3: Cross multiply
    20,099.03x = 30,150.05 × 6,772.10
  4. Step 4: Simplify right side
    20,099.03x = 204,179,153.61
  5. Step 5: Solve for x
    x = 204,179,153.61/20,099.03
  6. Step 6: Final answer
    x = 10,158.66

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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.