Home / 21,725.94-29,976.90-13,232.46

Finding the Fourth Proportional to 21,725.94, 29,976.90 and 13,232.46

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Solution

The fourth proportional to 21,725.94, 29,976.90 and 13,232.46 is: 18,257.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,725.94 : 29,976.90 = 13,232.46 : x
  2. Step 2: Convert to fraction form
    21,725.94/29,976.90 = 13,232.46/x
  3. Step 3: Cross multiply
    21,725.94x = 29,976.90 × 13,232.46
  4. Step 4: Simplify right side
    21,725.94x = 396,668,130.17
  5. Step 5: Solve for x
    x = 396,668,130.17/21,725.94
  6. Step 6: Final answer
    x = 18,257.81

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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.