Home / 31,824.80-43,919.20-17,678.64

Finding the Fourth Proportional to 31,824.80, 43,919.20 and 17,678.64

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Solution

The fourth proportional to 31,824.80, 43,919.20 and 17,678.64 is: 24,397.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,824.80 : 43,919.20 = 17,678.64 : x
  2. Step 2: Convert to fraction form
    31,824.80/43,919.20 = 17,678.64/x
  3. Step 3: Cross multiply
    31,824.80x = 43,919.20 × 17,678.64
  4. Step 4: Simplify right side
    31,824.80x = 776,431,725.89
  5. Step 5: Solve for x
    x = 776,431,725.89/31,824.80
  6. Step 6: Final answer
    x = 24,397.07

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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.