Home / 21,719.25-32,579.24-8,571.51

Finding the Fourth Proportional to 21,719.25, 32,579.24 and 8,571.51

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Solution

The fourth proportional to 21,719.25, 32,579.24 and 8,571.51 is: 12,857.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.25 : 32,579.24 = 8,571.51 : x
  2. Step 2: Convert to fraction form
    21,719.25/32,579.24 = 8,571.51/x
  3. Step 3: Cross multiply
    21,719.25x = 32,579.24 × 8,571.51
  4. Step 4: Simplify right side
    21,719.25x = 279,253,238.59
  5. Step 5: Solve for x
    x = 279,253,238.59/21,719.25
  6. Step 6: Final answer
    x = 12,857.41

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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.