Home / 21,986.82-32,987.29-7,192.37

Finding the Fourth Proportional to 21,986.82, 32,987.29 and 7,192.37

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Solution

The fourth proportional to 21,986.82, 32,987.29 and 7,192.37 is: 10,790.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.82 : 32,987.29 = 7,192.37 : x
  2. Step 2: Convert to fraction form
    21,986.82/32,987.29 = 7,192.37/x
  3. Step 3: Cross multiply
    21,986.82x = 32,987.29 × 7,192.37
  4. Step 4: Simplify right side
    21,986.82x = 237,256,794.98
  5. Step 5: Solve for x
    x = 237,256,794.98/21,986.82
  6. Step 6: Final answer
    x = 10,790.86

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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.