Home / 20,704.18-30,997.95-18,604.66

Finding the Fourth Proportional to 20,704.18, 30,997.95 and 18,604.66

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Solution

The fourth proportional to 20,704.18, 30,997.95 and 18,604.66 is: 27,854.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.18 : 30,997.95 = 18,604.66 : x
  2. Step 2: Convert to fraction form
    20,704.18/30,997.95 = 18,604.66/x
  3. Step 3: Cross multiply
    20,704.18x = 30,997.95 × 18,604.66
  4. Step 4: Simplify right side
    20,704.18x = 576,706,320.45
  5. Step 5: Solve for x
    x = 576,706,320.45/20,704.18
  6. Step 6: Final answer
    x = 27,854.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.