Home / 28,908.57-39,893.67-16,161.75

Finding the Fourth Proportional to 28,908.57, 39,893.67 and 16,161.75

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Solution

The fourth proportional to 28,908.57, 39,893.67 and 16,161.75 is: 22,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.57 : 39,893.67 = 16,161.75 : x
  2. Step 2: Convert to fraction form
    28,908.57/39,893.67 = 16,161.75/x
  3. Step 3: Cross multiply
    28,908.57x = 39,893.67 × 16,161.75
  4. Step 4: Simplify right side
    28,908.57x = 644,751,521.12
  5. Step 5: Solve for x
    x = 644,751,521.12/28,908.57
  6. Step 6: Final answer
    x = 22,303.13

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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.