Home / 28,042.96-42,067.68-7,268.08

Finding the Fourth Proportional to 28,042.96, 42,067.68 and 7,268.08

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Solution

The fourth proportional to 28,042.96, 42,067.68 and 7,268.08 is: 10,902.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.96 : 42,067.68 = 7,268.08 : x
  2. Step 2: Convert to fraction form
    28,042.96/42,067.68 = 7,268.08/x
  3. Step 3: Cross multiply
    28,042.96x = 42,067.68 × 7,268.08
  4. Step 4: Simplify right side
    28,042.96x = 305,751,263.65
  5. Step 5: Solve for x
    x = 305,751,263.65/28,042.96
  6. Step 6: Final answer
    x = 10,902.96

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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.