Home / 15,918.31-23,878.01-4,231.54

Finding the Fourth Proportional to 15,918.31, 23,878.01 and 4,231.54

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Solution

The fourth proportional to 15,918.31, 23,878.01 and 4,231.54 is: 6,347.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.31 : 23,878.01 = 4,231.54 : x
  2. Step 2: Convert to fraction form
    15,918.31/23,878.01 = 4,231.54/x
  3. Step 3: Cross multiply
    15,918.31x = 23,878.01 × 4,231.54
  4. Step 4: Simplify right side
    15,918.31x = 101,040,754.44
  5. Step 5: Solve for x
    x = 101,040,754.44/15,918.31
  6. Step 6: Final answer
    x = 6,347.45

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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.