Home / 22,371.19-30,872.24-12,945.22

Finding the Fourth Proportional to 22,371.19, 30,872.24 and 12,945.22

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Solution

The fourth proportional to 22,371.19, 30,872.24 and 12,945.22 is: 17,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,371.19 : 30,872.24 = 12,945.22 : x
  2. Step 2: Convert to fraction form
    22,371.19/30,872.24 = 12,945.22/x
  3. Step 3: Cross multiply
    22,371.19x = 30,872.24 × 12,945.22
  4. Step 4: Simplify right side
    22,371.19x = 399,647,845.33
  5. Step 5: Solve for x
    x = 399,647,845.33/22,371.19
  6. Step 6: Final answer
    x = 17,864.40

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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.