Home / 21,725.54-29,983.77-13,232.65

Finding the Fourth Proportional to 21,725.54, 29,983.77 and 13,232.65

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Solution

The fourth proportional to 21,725.54, 29,983.77 and 13,232.65 is: 18,262.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,725.54 : 29,983.77 = 13,232.65 : x
  2. Step 2: Convert to fraction form
    21,725.54/29,983.77 = 13,232.65/x
  3. Step 3: Cross multiply
    21,725.54x = 29,983.77 × 13,232.65
  4. Step 4: Simplify right side
    21,725.54x = 396,764,734.09
  5. Step 5: Solve for x
    x = 396,764,734.09/21,725.54
  6. Step 6: Final answer
    x = 18,262.59

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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.