Home / 25,338.67-34,979.84-15,912.43

Finding the Fourth Proportional to 25,338.67, 34,979.84 and 15,912.43

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Solution

The fourth proportional to 25,338.67, 34,979.84 and 15,912.43 is: 21,966.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,338.67 : 34,979.84 = 15,912.43 : x
  2. Step 2: Convert to fraction form
    25,338.67/34,979.84 = 15,912.43/x
  3. Step 3: Cross multiply
    25,338.67x = 34,979.84 × 15,912.43
  4. Step 4: Simplify right side
    25,338.67x = 556,614,175.85
  5. Step 5: Solve for x
    x = 556,614,175.85/25,338.67
  6. Step 6: Final answer
    x = 21,966.98

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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.