Home / 22,217.20-30,659.65-12,145.64

Finding the Fourth Proportional to 22,217.20, 30,659.65 and 12,145.64

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Solution

The fourth proportional to 22,217.20, 30,659.65 and 12,145.64 is: 16,760.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.20 : 30,659.65 = 12,145.64 : x
  2. Step 2: Convert to fraction form
    22,217.20/30,659.65 = 12,145.64/x
  3. Step 3: Cross multiply
    22,217.20x = 30,659.65 × 12,145.64
  4. Step 4: Simplify right side
    22,217.20x = 372,380,887.76
  5. Step 5: Solve for x
    x = 372,380,887.76/22,217.20
  6. Step 6: Final answer
    x = 16,760.93

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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.