Home / 30,824.62-42,515.08-18,725.04

Finding the Fourth Proportional to 30,824.62, 42,515.08 and 18,725.04

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Solution

The fourth proportional to 30,824.62, 42,515.08 and 18,725.04 is: 25,826.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,824.62 : 42,515.08 = 18,725.04 : x
  2. Step 2: Convert to fraction form
    30,824.62/42,515.08 = 18,725.04/x
  3. Step 3: Cross multiply
    30,824.62x = 42,515.08 × 18,725.04
  4. Step 4: Simplify right side
    30,824.62x = 796,096,573.60
  5. Step 5: Solve for x
    x = 796,096,573.60/30,824.62
  6. Step 6: Final answer
    x = 25,826.65

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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.