Home / 22,217.15-30,659.73-12,145.71

Finding the Fourth Proportional to 22,217.15, 30,659.73 and 12,145.71

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Solution

The fourth proportional to 22,217.15, 30,659.73 and 12,145.71 is: 16,761.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.15 : 30,659.73 = 12,145.71 : x
  2. Step 2: Convert to fraction form
    22,217.15/30,659.73 = 12,145.71/x
  3. Step 3: Cross multiply
    22,217.15x = 30,659.73 × 12,145.71
  4. Step 4: Simplify right side
    22,217.15x = 372,384,189.26
  5. Step 5: Solve for x
    x = 372,384,189.26/22,217.15
  6. Step 6: Final answer
    x = 16,761.11

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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.