Home / 22,217.28-30,659.80-12,145.72

Finding the Fourth Proportional to 22,217.28, 30,659.80 and 12,145.72

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Solution

The fourth proportional to 22,217.28, 30,659.80 and 12,145.72 is: 16,761.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.28 : 30,659.80 = 12,145.72 : x
  2. Step 2: Convert to fraction form
    22,217.28/30,659.80 = 12,145.72/x
  3. Step 3: Cross multiply
    22,217.28x = 30,659.80 × 12,145.72
  4. Step 4: Simplify right side
    22,217.28x = 372,385,346.06
  5. Step 5: Solve for x
    x = 372,385,346.06/22,217.28
  6. Step 6: Final answer
    x = 16,761.07

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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.