Home / 21,755.77-30,022.97-12,324.33

Finding the Fourth Proportional to 21,755.77, 30,022.97 and 12,324.33

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Solution

The fourth proportional to 21,755.77, 30,022.97 and 12,324.33 is: 17,007.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,755.77 : 30,022.97 = 12,324.33 : x
  2. Step 2: Convert to fraction form
    21,755.77/30,022.97 = 12,324.33/x
  3. Step 3: Cross multiply
    21,755.77x = 30,022.97 × 12,324.33
  4. Step 4: Simplify right side
    21,755.77x = 370,012,989.86
  5. Step 5: Solve for x
    x = 370,012,989.86/21,755.77
  6. Step 6: Final answer
    x = 17,007.58

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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.