Home / 28,536.25-42,804.39-7,759.75

Finding the Fourth Proportional to 28,536.25, 42,804.39 and 7,759.75

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Solution

The fourth proportional to 28,536.25, 42,804.39 and 7,759.75 is: 11,639.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.25 : 42,804.39 = 7,759.75 : x
  2. Step 2: Convert to fraction form
    28,536.25/42,804.39 = 7,759.75/x
  3. Step 3: Cross multiply
    28,536.25x = 42,804.39 × 7,759.75
  4. Step 4: Simplify right side
    28,536.25x = 332,151,365.30
  5. Step 5: Solve for x
    x = 332,151,365.30/28,536.25
  6. Step 6: Final answer
    x = 11,639.63

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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.