Home / 31,787.82-43,863.39-17,638.74

Finding the Fourth Proportional to 31,787.82, 43,863.39 and 17,638.74

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Solution

The fourth proportional to 31,787.82, 43,863.39 and 17,638.74 is: 24,339.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,787.82 : 43,863.39 = 17,638.74 : x
  2. Step 2: Convert to fraction form
    31,787.82/43,863.39 = 17,638.74/x
  3. Step 3: Cross multiply
    31,787.82x = 43,863.39 × 17,638.74
  4. Step 4: Simplify right side
    31,787.82x = 773,694,931.73
  5. Step 5: Solve for x
    x = 773,694,931.73/31,787.82
  6. Step 6: Final answer
    x = 24,339.35

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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.