Home / 22,265.42-30,715.11-13,310.55

Finding the Fourth Proportional to 22,265.42, 30,715.11 and 13,310.55

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Solution

The fourth proportional to 22,265.42, 30,715.11 and 13,310.55 is: 18,361.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,265.42 : 30,715.11 = 13,310.55 : x
  2. Step 2: Convert to fraction form
    22,265.42/30,715.11 = 13,310.55/x
  3. Step 3: Cross multiply
    22,265.42x = 30,715.11 × 13,310.55
  4. Step 4: Simplify right side
    22,265.42x = 408,835,007.41
  5. Step 5: Solve for x
    x = 408,835,007.41/22,265.42
  6. Step 6: Final answer
    x = 18,361.89

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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.