Home / 21,922.24-30,456.75-21,659.80

Finding the Fourth Proportional to 21,922.24, 30,456.75 and 21,659.80

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Solution

The fourth proportional to 21,922.24, 30,456.75 and 21,659.80 is: 30,092.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.24 : 30,456.75 = 21,659.80 : x
  2. Step 2: Convert to fraction form
    21,922.24/30,456.75 = 21,659.80/x
  3. Step 3: Cross multiply
    21,922.24x = 30,456.75 × 21,659.80
  4. Step 4: Simplify right side
    21,922.24x = 659,687,113.65
  5. Step 5: Solve for x
    x = 659,687,113.65/21,922.24
  6. Step 6: Final answer
    x = 30,092.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.