Home / 28,169.58-38,871.36-16,836.81

Finding the Fourth Proportional to 28,169.58, 38,871.36 and 16,836.81

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Solution

The fourth proportional to 28,169.58, 38,871.36 and 16,836.81 is: 23,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169.58 : 38,871.36 = 16,836.81 : x
  2. Step 2: Convert to fraction form
    28,169.58/38,871.36 = 16,836.81/x
  3. Step 3: Cross multiply
    28,169.58x = 38,871.36 × 16,836.81
  4. Step 4: Simplify right side
    28,169.58x = 654,469,556.99
  5. Step 5: Solve for x
    x = 654,469,556.99/28,169.58
  6. Step 6: Final answer
    x = 23,233.20

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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.