Home / 20,243.92-30,367.32-7,099.60

Finding the Fourth Proportional to 20,243.92, 30,367.32 and 7,099.60

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Solution

The fourth proportional to 20,243.92, 30,367.32 and 7,099.60 is: 10,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.92 : 30,367.32 = 7,099.60 : x
  2. Step 2: Convert to fraction form
    20,243.92/30,367.32 = 7,099.60/x
  3. Step 3: Cross multiply
    20,243.92x = 30,367.32 × 7,099.60
  4. Step 4: Simplify right side
    20,243.92x = 215,595,825.07
  5. Step 5: Solve for x
    x = 215,595,825.07/20,243.92
  6. Step 6: Final answer
    x = 10,649.91

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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.