Home / 20,231.10-30,346.60-5,440.02

Finding the Fourth Proportional to 20,231.10, 30,346.60 and 5,440.02

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Solution

The fourth proportional to 20,231.10, 30,346.60 and 5,440.02 is: 8,160.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.10 : 30,346.60 = 5,440.02 : x
  2. Step 2: Convert to fraction form
    20,231.10/30,346.60 = 5,440.02/x
  3. Step 3: Cross multiply
    20,231.10x = 30,346.60 × 5,440.02
  4. Step 4: Simplify right side
    20,231.10x = 165,085,993.73
  5. Step 5: Solve for x
    x = 165,085,993.73/20,231.10
  6. Step 6: Final answer
    x = 8,160.01

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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.