Home / 28,367.75-42,558.46-8,645.12

Finding the Fourth Proportional to 28,367.75, 42,558.46 and 8,645.12

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Solution

The fourth proportional to 28,367.75, 42,558.46 and 8,645.12 is: 12,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.75 : 42,558.46 = 8,645.12 : x
  2. Step 2: Convert to fraction form
    28,367.75/42,558.46 = 8,645.12/x
  3. Step 3: Cross multiply
    28,367.75x = 42,558.46 × 8,645.12
  4. Step 4: Simplify right side
    28,367.75x = 367,922,759.31
  5. Step 5: Solve for x
    x = 367,922,759.31/28,367.75
  6. Step 6: Final answer
    x = 12,969.75

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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.