Home / 28,828.18-39,792.81-16,895.38

Finding the Fourth Proportional to 28,828.18, 39,792.81 and 16,895.38

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Solution

The fourth proportional to 28,828.18, 39,792.81 and 16,895.38 is: 23,321.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.18 : 39,792.81 = 16,895.38 : x
  2. Step 2: Convert to fraction form
    28,828.18/39,792.81 = 16,895.38/x
  3. Step 3: Cross multiply
    28,828.18x = 39,792.81 × 16,895.38
  4. Step 4: Simplify right side
    28,828.18x = 672,314,646.22
  5. Step 5: Solve for x
    x = 672,314,646.22/28,828.18
  6. Step 6: Final answer
    x = 23,321.44

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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.