Home / 28,576.05-42,843.30-11,940.84

Finding the Fourth Proportional to 28,576.05, 42,843.30 and 11,940.84

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Solution

The fourth proportional to 28,576.05, 42,843.30 and 11,940.84 is: 17,902.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.05 : 42,843.30 = 11,940.84 : x
  2. Step 2: Convert to fraction form
    28,576.05/42,843.30 = 11,940.84/x
  3. Step 3: Cross multiply
    28,576.05x = 42,843.30 × 11,940.84
  4. Step 4: Simplify right side
    28,576.05x = 511,584,990.37
  5. Step 5: Solve for x
    x = 511,584,990.37/28,576.05
  6. Step 6: Final answer
    x = 17,902.58

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1.5x scale

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.