Home / 28,725.32-43,087.56-10,005

Finding the Fourth Proportional to 28,725.32, 43,087.56 and 10,005

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Solution

The fourth proportional to 28,725.32, 43,087.56 and 10,005 is: 15,007.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.32 : 43,087.56 = 10,005 : x
  2. Step 2: Convert to fraction form
    28,725.32/43,087.56 = 10,005/x
  3. Step 3: Cross multiply
    28,725.32x = 43,087.56 × 10,005
  4. Step 4: Simplify right side
    28,725.32x = 431,091,037.80
  5. Step 5: Solve for x
    x = 431,091,037.80/28,725.32
  6. Step 6: Final answer
    x = 15,007.35

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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.