Home / 21,747.29-32,571.36-12,964.05

Finding the Fourth Proportional to 21,747.29, 32,571.36 and 12,964.05

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Solution

The fourth proportional to 21,747.29, 32,571.36 and 12,964.05 is: 19,416.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,747.29 : 32,571.36 = 12,964.05 : x
  2. Step 2: Convert to fraction form
    21,747.29/32,571.36 = 12,964.05/x
  3. Step 3: Cross multiply
    21,747.29x = 32,571.36 × 12,964.05
  4. Step 4: Simplify right side
    21,747.29x = 422,256,739.61
  5. Step 5: Solve for x
    x = 422,256,739.61/21,747.29
  6. Step 6: Final answer
    x = 19,416.53

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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.