Home / 21,228.88-29,296.38-11,797.96

Finding the Fourth Proportional to 21,228.88, 29,296.38 and 11,797.96

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Solution

The fourth proportional to 21,228.88, 29,296.38 and 11,797.96 is: 16,281.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228.88 : 29,296.38 = 11,797.96 : x
  2. Step 2: Convert to fraction form
    21,228.88/29,296.38 = 11,797.96/x
  3. Step 3: Cross multiply
    21,228.88x = 29,296.38 × 11,797.96
  4. Step 4: Simplify right side
    21,228.88x = 345,637,519.38
  5. Step 5: Solve for x
    x = 345,637,519.38/21,228.88
  6. Step 6: Final answer
    x = 16,281.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.