Home / 20,099.78-30,116.39-6,944.84

Finding the Fourth Proportional to 20,099.78, 30,116.39 and 6,944.84

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Solution

The fourth proportional to 20,099.78, 30,116.39 and 6,944.84 is: 10,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.78 : 30,116.39 = 6,944.84 : x
  2. Step 2: Convert to fraction form
    20,099.78/30,116.39 = 6,944.84/x
  3. Step 3: Cross multiply
    20,099.78x = 30,116.39 × 6,944.84
  4. Step 4: Simplify right side
    20,099.78x = 209,153,509.93
  5. Step 5: Solve for x
    x = 209,153,509.93/20,099.78
  6. Step 6: Final answer
    x = 10,405.76

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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.