Home / 21,843.24-32,764.86-7,984.68

Finding the Fourth Proportional to 21,843.24, 32,764.86 and 7,984.68

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Solution

The fourth proportional to 21,843.24, 32,764.86 and 7,984.68 is: 11,977.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843.24 : 32,764.86 = 7,984.68 : x
  2. Step 2: Convert to fraction form
    21,843.24/32,764.86 = 7,984.68/x
  3. Step 3: Cross multiply
    21,843.24x = 32,764.86 × 7,984.68
  4. Step 4: Simplify right side
    21,843.24x = 261,616,922.34
  5. Step 5: Solve for x
    x = 261,616,922.34/21,843.24
  6. Step 6: Final answer
    x = 11,977.02

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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.