Home / 20,140.56-30,209.88-6,099.96

Finding the Fourth Proportional to 20,140.56, 30,209.88 and 6,099.96

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Solution

The fourth proportional to 20,140.56, 30,209.88 and 6,099.96 is: 9,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.56 : 30,209.88 = 6,099.96 : x
  2. Step 2: Convert to fraction form
    20,140.56/30,209.88 = 6,099.96/x
  3. Step 3: Cross multiply
    20,140.56x = 30,209.88 × 6,099.96
  4. Step 4: Simplify right side
    20,140.56x = 184,279,059.60
  5. Step 5: Solve for x
    x = 184,279,059.60/20,140.56
  6. Step 6: Final answer
    x = 9,149.65

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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.