Home / 28,620.09-42,927.66-7,843.59

Finding the Fourth Proportional to 28,620.09, 42,927.66 and 7,843.59

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Solution

The fourth proportional to 28,620.09, 42,927.66 and 7,843.59 is: 11,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.09 : 42,927.66 = 7,843.59 : x
  2. Step 2: Convert to fraction form
    28,620.09/42,927.66 = 7,843.59/x
  3. Step 3: Cross multiply
    28,620.09x = 42,927.66 × 7,843.59
  4. Step 4: Simplify right side
    28,620.09x = 336,706,964.70
  5. Step 5: Solve for x
    x = 336,706,964.70/28,620.09
  6. Step 6: Final answer
    x = 11,764.71

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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.