Home / 21,647.05-32,467.38-13,322.78

Finding the Fourth Proportional to 21,647.05, 32,467.38 and 13,322.78

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Solution

The fourth proportional to 21,647.05, 32,467.38 and 13,322.78 is: 19,982.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647.05 : 32,467.38 = 13,322.78 : x
  2. Step 2: Convert to fraction form
    21,647.05/32,467.38 = 13,322.78/x
  3. Step 3: Cross multiply
    21,647.05x = 32,467.38 × 13,322.78
  4. Step 4: Simplify right side
    21,647.05x = 432,555,745.31
  5. Step 5: Solve for x
    x = 432,555,745.31/21,647.05
  6. Step 6: Final answer
    x = 19,982.21

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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.