Home / 22,221.80-30,667.04-12,149.64

Finding the Fourth Proportional to 22,221.80, 30,667.04 and 12,149.64

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Solution

The fourth proportional to 22,221.80, 30,667.04 and 12,149.64 is: 16,767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.80 : 30,667.04 = 12,149.64 : x
  2. Step 2: Convert to fraction form
    22,221.80/30,667.04 = 12,149.64/x
  3. Step 3: Cross multiply
    22,221.80x = 30,667.04 × 12,149.64
  4. Step 4: Simplify right side
    22,221.80x = 372,593,433.49
  5. Step 5: Solve for x
    x = 372,593,433.49/22,221.80
  6. Step 6: Final answer
    x = 16,767.02

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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.