Home / 20,134.12-30,191.40-8,444.20

Finding the Fourth Proportional to 20,134.12, 30,191.40 and 8,444.20

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Solution

The fourth proportional to 20,134.12, 30,191.40 and 8,444.20 is: 12,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.12 : 30,191.40 = 8,444.20 : x
  2. Step 2: Convert to fraction form
    20,134.12/30,191.40 = 8,444.20/x
  3. Step 3: Cross multiply
    20,134.12x = 30,191.40 × 8,444.20
  4. Step 4: Simplify right side
    20,134.12x = 254,942,219.88
  5. Step 5: Solve for x
    x = 254,942,219.88/20,134.12
  6. Step 6: Final answer
    x = 12,662.20

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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.