Home / 21,727.86-29,983.41-13,344.18

Finding the Fourth Proportional to 21,727.86, 29,983.41 and 13,344.18

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Solution

The fourth proportional to 21,727.86, 29,983.41 and 13,344.18 is: 18,414.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,727.86 : 29,983.41 = 13,344.18 : x
  2. Step 2: Convert to fraction form
    21,727.86/29,983.41 = 13,344.18/x
  3. Step 3: Cross multiply
    21,727.86x = 29,983.41 × 13,344.18
  4. Step 4: Simplify right side
    21,727.86x = 400,104,020.05
  5. Step 5: Solve for x
    x = 400,104,020.05/21,727.86
  6. Step 6: Final answer
    x = 18,414.33

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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.