Home / 28,571.02-42,846.48-8,574.54

Finding the Fourth Proportional to 28,571.02, 42,846.48 and 8,574.54

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Solution

The fourth proportional to 28,571.02, 42,846.48 and 8,574.54 is: 12,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.02 : 42,846.48 = 8,574.54 : x
  2. Step 2: Convert to fraction form
    28,571.02/42,846.48 = 8,574.54/x
  3. Step 3: Cross multiply
    28,571.02x = 42,846.48 × 8,574.54
  4. Step 4: Simplify right side
    28,571.02x = 367,388,856.62
  5. Step 5: Solve for x
    x = 367,388,856.62/28,571.02
  6. Step 6: Final answer
    x = 12,858.79

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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.