Home / 21,723.33-29,979.36-13,224.10

Finding the Fourth Proportional to 21,723.33, 29,979.36 and 13,224.10

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Solution

The fourth proportional to 21,723.33, 29,979.36 and 13,224.10 is: 18,249.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,723.33 : 29,979.36 = 13,224.10 : x
  2. Step 2: Convert to fraction form
    21,723.33/29,979.36 = 13,224.10/x
  3. Step 3: Cross multiply
    21,723.33x = 29,979.36 × 13,224.10
  4. Step 4: Simplify right side
    21,723.33x = 396,450,054.58
  5. Step 5: Solve for x
    x = 396,450,054.58/21,723.33
  6. Step 6: Final answer
    x = 18,249.97

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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.