Home / 22,754.40-31,397.27-12,680.64

Finding the Fourth Proportional to 22,754.40, 31,397.27 and 12,680.64

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Solution

The fourth proportional to 22,754.40, 31,397.27 and 12,680.64 is: 17,497.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,754.40 : 31,397.27 = 12,680.64 : x
  2. Step 2: Convert to fraction form
    22,754.40/31,397.27 = 12,680.64/x
  3. Step 3: Cross multiply
    22,754.40x = 31,397.27 × 12,680.64
  4. Step 4: Simplify right side
    22,754.40x = 398,137,414.45
  5. Step 5: Solve for x
    x = 398,137,414.45/22,754.40
  6. Step 6: Final answer
    x = 17,497.16

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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.