Home / 25,515.14-38,273.31-7,985.52

Finding the Fourth Proportional to 25,515.14, 38,273.31 and 7,985.52

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Solution

The fourth proportional to 25,515.14, 38,273.31 and 7,985.52 is: 11,978.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515.14 : 38,273.31 = 7,985.52 : x
  2. Step 2: Convert to fraction form
    25,515.14/38,273.31 = 7,985.52/x
  3. Step 3: Cross multiply
    25,515.14x = 38,273.31 × 7,985.52
  4. Step 4: Simplify right side
    25,515.14x = 305,632,282.47
  5. Step 5: Solve for x
    x = 305,632,282.47/25,515.14
  6. Step 6: Final answer
    x = 11,978.47

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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.