Home / 31,731.06-43,788.21-17,583.78

Finding the Fourth Proportional to 31,731.06, 43,788.21 and 17,583.78

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Solution

The fourth proportional to 31,731.06, 43,788.21 and 17,583.78 is: 24,265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,731.06 : 43,788.21 = 17,583.78 : x
  2. Step 2: Convert to fraction form
    31,731.06/43,788.21 = 17,583.78/x
  3. Step 3: Cross multiply
    31,731.06x = 43,788.21 × 17,583.78
  4. Step 4: Simplify right side
    31,731.06x = 769,962,251.23
  5. Step 5: Solve for x
    x = 769,962,251.23/31,731.06
  6. Step 6: Final answer
    x = 24,265.25

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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.