Home / 20,102.54-30,153.83-6,947.73

Finding the Fourth Proportional to 20,102.54, 30,153.83 and 6,947.73

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Solution

The fourth proportional to 20,102.54, 30,153.83 and 6,947.73 is: 10,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.54 : 30,153.83 = 6,947.73 : x
  2. Step 2: Convert to fraction form
    20,102.54/30,153.83 = 6,947.73/x
  3. Step 3: Cross multiply
    20,102.54x = 30,153.83 × 6,947.73
  4. Step 4: Simplify right side
    20,102.54x = 209,500,634.57
  5. Step 5: Solve for x
    x = 209,500,634.57/20,102.54
  6. Step 6: Final answer
    x = 10,421.60

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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.