Home / 28,571.58-39,666.29-27,716.22

Finding the Fourth Proportional to 28,571.58, 39,666.29 and 27,716.22

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Solution

The fourth proportional to 28,571.58, 39,666.29 and 27,716.22 is: 38,478.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.58 : 39,666.29 = 27,716.22 : x
  2. Step 2: Convert to fraction form
    28,571.58/39,666.29 = 27,716.22/x
  3. Step 3: Cross multiply
    28,571.58x = 39,666.29 × 27,716.22
  4. Step 4: Simplify right side
    28,571.58x = 1,099,399,481.64
  5. Step 5: Solve for x
    x = 1,099,399,481.64/28,571.58
  6. Step 6: Final answer
    x = 38,478.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.