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Finding the Fourth Proportional to 31,863.88, 43,973.04 and 17,717.68

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Solution

The fourth proportional to 31,863.88, 43,973.04 and 17,717.68 is: 24,450.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,863.88 : 43,973.04 = 17,717.68 : x
  2. Step 2: Convert to fraction form
    31,863.88/43,973.04 = 17,717.68/x
  3. Step 3: Cross multiply
    31,863.88x = 43,973.04 × 17,717.68
  4. Step 4: Simplify right side
    31,863.88x = 779,100,251.35
  5. Step 5: Solve for x
    x = 779,100,251.35/31,863.88
  6. Step 6: Final answer
    x = 24,450.89

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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.