Home / 20,181.20-30,276.64-6,330.20

Finding the Fourth Proportional to 20,181.20, 30,276.64 and 6,330.20

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Solution

The fourth proportional to 20,181.20, 30,276.64 and 6,330.20 is: 9,496.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.20 : 30,276.64 = 6,330.20 : x
  2. Step 2: Convert to fraction form
    20,181.20/30,276.64 = 6,330.20/x
  3. Step 3: Cross multiply
    20,181.20x = 30,276.64 × 6,330.20
  4. Step 4: Simplify right side
    20,181.20x = 191,657,186.53
  5. Step 5: Solve for x
    x = 191,657,186.53/20,181.20
  6. Step 6: Final answer
    x = 9,496.82

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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.