Home / 21,709.22-32,555.52-11,843.21

Finding the Fourth Proportional to 21,709.22, 32,555.52 and 11,843.21

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Solution

The fourth proportional to 21,709.22, 32,555.52 and 11,843.21 is: 17,760.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709.22 : 32,555.52 = 11,843.21 : x
  2. Step 2: Convert to fraction form
    21,709.22/32,555.52 = 11,843.21/x
  3. Step 3: Cross multiply
    21,709.22x = 32,555.52 × 11,843.21
  4. Step 4: Simplify right side
    21,709.22x = 385,561,941.41
  5. Step 5: Solve for x
    x = 385,561,941.41/21,709.22
  6. Step 6: Final answer
    x = 17,760.29

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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.