Home / 28,991.48-43,469.76-15,825.56

Finding the Fourth Proportional to 28,991.48, 43,469.76 and 15,825.56

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Solution

The fourth proportional to 28,991.48, 43,469.76 and 15,825.56 is: 23,728.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.48 : 43,469.76 = 15,825.56 : x
  2. Step 2: Convert to fraction form
    28,991.48/43,469.76 = 15,825.56/x
  3. Step 3: Cross multiply
    28,991.48x = 43,469.76 × 15,825.56
  4. Step 4: Simplify right side
    28,991.48x = 687,933,295.07
  5. Step 5: Solve for x
    x = 687,933,295.07/28,991.48
  6. Step 6: Final answer
    x = 23,728.81

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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.