Home / 20,524.31-28,323.51-11,571.75

Finding the Fourth Proportional to 20,524.31, 28,323.51 and 11,571.75

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Solution

The fourth proportional to 20,524.31, 28,323.51 and 11,571.75 is: 15,968.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,524.31 : 28,323.51 = 11,571.75 : x
  2. Step 2: Convert to fraction form
    20,524.31/28,323.51 = 11,571.75/x
  3. Step 3: Cross multiply
    20,524.31x = 28,323.51 × 11,571.75
  4. Step 4: Simplify right side
    20,524.31x = 327,752,586.56
  5. Step 5: Solve for x
    x = 327,752,586.56/20,524.31
  6. Step 6: Final answer
    x = 15,968.99

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1.5x scale

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.