Home / 21,725.26-29,980.84-11,789.26

Finding the Fourth Proportional to 21,725.26, 29,980.84 and 11,789.26

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Solution

The fourth proportional to 21,725.26, 29,980.84 and 11,789.26 is: 16,269.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,725.26 : 29,980.84 = 11,789.26 : x
  2. Step 2: Convert to fraction form
    21,725.26/29,980.84 = 11,789.26/x
  3. Step 3: Cross multiply
    21,725.26x = 29,980.84 × 11,789.26
  4. Step 4: Simplify right side
    21,725.26x = 353,451,917.78
  5. Step 5: Solve for x
    x = 353,451,917.78/21,725.26
  6. Step 6: Final answer
    x = 16,269.17

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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.