Home / 22,344.64-30,832.17-12,911.38

Finding the Fourth Proportional to 22,344.64, 30,832.17 and 12,911.38

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Solution

The fourth proportional to 22,344.64, 30,832.17 and 12,911.38 is: 17,815.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,344.64 : 30,832.17 = 12,911.38 : x
  2. Step 2: Convert to fraction form
    22,344.64/30,832.17 = 12,911.38/x
  3. Step 3: Cross multiply
    22,344.64x = 30,832.17 × 12,911.38
  4. Step 4: Simplify right side
    22,344.64x = 398,085,863.09
  5. Step 5: Solve for x
    x = 398,085,863.09/22,344.64
  6. Step 6: Final answer
    x = 17,815.72

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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.