Home / 15,823.82-21,829.44-11,287.50

Finding the Fourth Proportional to 15,823.82, 21,829.44 and 11,287.50

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Solution

The fourth proportional to 15,823.82, 21,829.44 and 11,287.50 is: 15,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,823.82 : 21,829.44 = 11,287.50 : x
  2. Step 2: Convert to fraction form
    15,823.82/21,829.44 = 11,287.50/x
  3. Step 3: Cross multiply
    15,823.82x = 21,829.44 × 11,287.50
  4. Step 4: Simplify right side
    15,823.82x = 246,399,747.56
  5. Step 5: Solve for x
    x = 246,399,747.56/15,823.82
  6. Step 6: Final answer
    x = 15,571.45

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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.