Home / 28,796.16-39,736.32-16,224

Finding the Fourth Proportional to 28,796.16, 39,736.32 and 16,224

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Solution

The fourth proportional to 28,796.16, 39,736.32 and 16,224 is: 22,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796.16 : 39,736.32 = 16,224 : x
  2. Step 2: Convert to fraction form
    28,796.16/39,736.32 = 16,224/x
  3. Step 3: Cross multiply
    28,796.16x = 39,736.32 × 16,224
  4. Step 4: Simplify right side
    28,796.16x = 644,682,055.68
  5. Step 5: Solve for x
    x = 644,682,055.68/28,796.16
  6. Step 6: Final answer
    x = 22,387.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.