Home / 20,094.40-30,145.92-8,401.60

Finding the Fourth Proportional to 20,094.40, 30,145.92 and 8,401.60

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Solution

The fourth proportional to 20,094.40, 30,145.92 and 8,401.60 is: 12,604.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,094.40 : 30,145.92 = 8,401.60 : x
  2. Step 2: Convert to fraction form
    20,094.40/30,145.92 = 8,401.60/x
  3. Step 3: Cross multiply
    20,094.40x = 30,145.92 × 8,401.60
  4. Step 4: Simplify right side
    20,094.40x = 253,273,961.47
  5. Step 5: Solve for x
    x = 253,273,961.47/20,094.40
  6. Step 6: Final answer
    x = 12,604.21

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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.