Home / 21,571.45-32,361.79-6,781.52

Finding the Fourth Proportional to 21,571.45, 32,361.79 and 6,781.52

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Solution

The fourth proportional to 21,571.45, 32,361.79 and 6,781.52 is: 10,173.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.45 : 32,361.79 = 6,781.52 : x
  2. Step 2: Convert to fraction form
    21,571.45/32,361.79 = 6,781.52/x
  3. Step 3: Cross multiply
    21,571.45x = 32,361.79 × 6,781.52
  4. Step 4: Simplify right side
    21,571.45x = 219,462,212.32
  5. Step 5: Solve for x
    x = 219,462,212.32/21,571.45
  6. Step 6: Final answer
    x = 10,173.73

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1.5x scale

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.