Home / 22,217.40-30,660.07-12,145.96

Finding the Fourth Proportional to 22,217.40, 30,660.07 and 12,145.96

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Solution

The fourth proportional to 22,217.40, 30,660.07 and 12,145.96 is: 16,761.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.40 : 30,660.07 = 12,145.96 : x
  2. Step 2: Convert to fraction form
    22,217.40/30,660.07 = 12,145.96/x
  3. Step 3: Cross multiply
    22,217.40x = 30,660.07 × 12,145.96
  4. Step 4: Simplify right side
    22,217.40x = 372,395,983.82
  5. Step 5: Solve for x
    x = 372,395,983.82/22,217.40
  6. Step 6: Final answer
    x = 16,761.46

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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.