Home / 20,896.26-28,850.49-12,950.16

Finding the Fourth Proportional to 20,896.26, 28,850.49 and 12,950.16

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Solution

The fourth proportional to 20,896.26, 28,850.49 and 12,950.16 is: 17,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.26 : 28,850.49 = 12,950.16 : x
  2. Step 2: Convert to fraction form
    20,896.26/28,850.49 = 12,950.16/x
  3. Step 3: Cross multiply
    20,896.26x = 28,850.49 × 12,950.16
  4. Step 4: Simplify right side
    20,896.26x = 373,618,461.58
  5. Step 5: Solve for x
    x = 373,618,461.58/20,896.26
  6. Step 6: Final answer
    x = 17,879.68

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1.5x scale

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.