Home / 22,198.56-30,618.72-15,824.40

Finding the Fourth Proportional to 22,198.56, 30,618.72 and 15,824.40

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Solution

The fourth proportional to 22,198.56, 30,618.72 and 15,824.40 is: 21,826.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,198.56 : 30,618.72 = 15,824.40 : x
  2. Step 2: Convert to fraction form
    22,198.56/30,618.72 = 15,824.40/x
  3. Step 3: Cross multiply
    22,198.56x = 30,618.72 × 15,824.40
  4. Step 4: Simplify right side
    22,198.56x = 484,522,872.77
  5. Step 5: Solve for x
    x = 484,522,872.77/22,198.56
  6. Step 6: Final answer
    x = 21,826.77

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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.