Home / 31,825.92-43,920.60-17,680.08

Finding the Fourth Proportional to 31,825.92, 43,920.60 and 17,680.08

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Solution

The fourth proportional to 31,825.92, 43,920.60 and 17,680.08 is: 24,398.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,825.92 : 43,920.60 = 17,680.08 : x
  2. Step 2: Convert to fraction form
    31,825.92/43,920.60 = 17,680.08/x
  3. Step 3: Cross multiply
    31,825.92x = 43,920.60 × 17,680.08
  4. Step 4: Simplify right side
    31,825.92x = 776,519,721.65
  5. Step 5: Solve for x
    x = 776,519,721.65/31,825.92
  6. Step 6: Final answer
    x = 24,398.97

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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.