Home / 28,705.46-43,067.91-12,908.84

Finding the Fourth Proportional to 28,705.46, 43,067.91 and 12,908.84

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Solution

The fourth proportional to 28,705.46, 43,067.91 and 12,908.84 is: 19,367.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.46 : 43,067.91 = 12,908.84 : x
  2. Step 2: Convert to fraction form
    28,705.46/43,067.91 = 12,908.84/x
  3. Step 3: Cross multiply
    28,705.46x = 43,067.91 × 12,908.84
  4. Step 4: Simplify right side
    28,705.46x = 555,956,759.32
  5. Step 5: Solve for x
    x = 555,956,759.32/28,705.46
  6. Step 6: Final answer
    x = 19,367.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.