Home / 28,287.99-42,441.09-8,568.54

Finding the Fourth Proportional to 28,287.99, 42,441.09 and 8,568.54

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Solution

The fourth proportional to 28,287.99, 42,441.09 and 8,568.54 is: 12,855.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.99 : 42,441.09 = 8,568.54 : x
  2. Step 2: Convert to fraction form
    28,287.99/42,441.09 = 8,568.54/x
  3. Step 3: Cross multiply
    28,287.99x = 42,441.09 × 8,568.54
  4. Step 4: Simplify right side
    28,287.99x = 363,658,177.31
  5. Step 5: Solve for x
    x = 363,658,177.31/28,287.99
  6. Step 6: Final answer
    x = 12,855.57

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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.