Home / 20,099.08-30,138.09-6,948.37

Finding the Fourth Proportional to 20,099.08, 30,138.09 and 6,948.37

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Solution

The fourth proportional to 20,099.08, 30,138.09 and 6,948.37 is: 10,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.08 : 30,138.09 = 6,948.37 : x
  2. Step 2: Convert to fraction form
    20,099.08/30,138.09 = 6,948.37/x
  3. Step 3: Cross multiply
    20,099.08x = 30,138.09 × 6,948.37
  4. Step 4: Simplify right side
    20,099.08x = 209,410,600.41
  5. Step 5: Solve for x
    x = 209,410,600.41/20,099.08
  6. Step 6: Final answer
    x = 10,418.91

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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.