Home / 21,965.99-32,884.38-13,619.21

Finding the Fourth Proportional to 21,965.99, 32,884.38 and 13,619.21

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Solution

The fourth proportional to 21,965.99, 32,884.38 and 13,619.21 is: 20,388.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.99 : 32,884.38 = 13,619.21 : x
  2. Step 2: Convert to fraction form
    21,965.99/32,884.38 = 13,619.21/x
  3. Step 3: Cross multiply
    21,965.99x = 32,884.38 × 13,619.21
  4. Step 4: Simplify right side
    21,965.99x = 447,859,112.52
  5. Step 5: Solve for x
    x = 447,859,112.52/21,965.99
  6. Step 6: Final answer
    x = 20,388.76

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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.