Home / 28,571.67-42,832.83-13,790.97

Finding the Fourth Proportional to 28,571.67, 42,832.83 and 13,790.97

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Solution

The fourth proportional to 28,571.67, 42,832.83 and 13,790.97 is: 20,674.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.67 : 42,832.83 = 13,790.97 : x
  2. Step 2: Convert to fraction form
    28,571.67/42,832.83 = 13,790.97/x
  3. Step 3: Cross multiply
    28,571.67x = 42,832.83 × 13,790.97
  4. Step 4: Simplify right side
    28,571.67x = 590,706,273.55
  5. Step 5: Solve for x
    x = 590,706,273.55/28,571.67
  6. Step 6: Final answer
    x = 20,674.54

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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.