Home / 28,828.34-39,786.96-16,896.42

Finding the Fourth Proportional to 28,828.34, 39,786.96 and 16,896.42

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Solution

The fourth proportional to 28,828.34, 39,786.96 and 16,896.42 is: 23,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.34 : 39,786.96 = 16,896.42 : x
  2. Step 2: Convert to fraction form
    28,828.34/39,786.96 = 16,896.42/x
  3. Step 3: Cross multiply
    28,828.34x = 39,786.96 × 16,896.42
  4. Step 4: Simplify right side
    28,828.34x = 672,257,186.68
  5. Step 5: Solve for x
    x = 672,257,186.68/28,828.34
  6. Step 6: Final answer
    x = 23,319.32

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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.