Home / 28,884.22-39,879.81-18,699.82

Finding the Fourth Proportional to 28,884.22, 39,879.81 and 18,699.82

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Solution

The fourth proportional to 28,884.22, 39,879.81 and 18,699.82 is: 25,818.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.22 : 39,879.81 = 18,699.82 : x
  2. Step 2: Convert to fraction form
    28,884.22/39,879.81 = 18,699.82/x
  3. Step 3: Cross multiply
    28,884.22x = 39,879.81 × 18,699.82
  4. Step 4: Simplify right side
    28,884.22x = 745,745,168.93
  5. Step 5: Solve for x
    x = 745,745,168.93/28,884.22
  6. Step 6: Final answer
    x = 25,818.43

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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.