Home / 22,056.96-30,439.20-11,985.84

Finding the Fourth Proportional to 22,056.96, 30,439.20 and 11,985.84

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Solution

The fourth proportional to 22,056.96, 30,439.20 and 11,985.84 is: 16,540.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,056.96 : 30,439.20 = 11,985.84 : x
  2. Step 2: Convert to fraction form
    22,056.96/30,439.20 = 11,985.84/x
  3. Step 3: Cross multiply
    22,056.96x = 30,439.20 × 11,985.84
  4. Step 4: Simplify right side
    22,056.96x = 364,839,380.93
  5. Step 5: Solve for x
    x = 364,839,380.93/22,056.96
  6. Step 6: Final answer
    x = 16,540.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.