Home / 21,986.22-32,975.69-7,943.56

Finding the Fourth Proportional to 21,986.22, 32,975.69 and 7,943.56

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Solution

The fourth proportional to 21,986.22, 32,975.69 and 7,943.56 is: 11,914.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.22 : 32,975.69 = 7,943.56 : x
  2. Step 2: Convert to fraction form
    21,986.22/32,975.69 = 7,943.56/x
  3. Step 3: Cross multiply
    21,986.22x = 32,975.69 × 7,943.56
  4. Step 4: Simplify right side
    21,986.22x = 261,944,372.06
  5. Step 5: Solve for x
    x = 261,944,372.06/21,986.22
  6. Step 6: Final answer
    x = 11,914.02

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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.