Home / 22,011.26-30,380.97-13,515.42

Finding the Fourth Proportional to 22,011.26, 30,380.97 and 13,515.42

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Solution

The fourth proportional to 22,011.26, 30,380.97 and 13,515.42 is: 18,654.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,011.26 : 30,380.97 = 13,515.42 : x
  2. Step 2: Convert to fraction form
    22,011.26/30,380.97 = 13,515.42/x
  3. Step 3: Cross multiply
    22,011.26x = 30,380.97 × 13,515.42
  4. Step 4: Simplify right side
    22,011.26x = 410,611,569.56
  5. Step 5: Solve for x
    x = 410,611,569.56/22,011.26
  6. Step 6: Final answer
    x = 18,654.62

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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.