Home / 20,844.21-28,790.26-15,169.96

Finding the Fourth Proportional to 20,844.21, 28,790.26 and 15,169.96

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Solution

The fourth proportional to 20,844.21, 28,790.26 and 15,169.96 is: 20,952.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.21 : 28,790.26 = 15,169.96 : x
  2. Step 2: Convert to fraction form
    20,844.21/28,790.26 = 15,169.96/x
  3. Step 3: Cross multiply
    20,844.21x = 28,790.26 × 15,169.96
  4. Step 4: Simplify right side
    20,844.21x = 436,746,982.69
  5. Step 5: Solve for x
    x = 436,746,982.69/20,844.21
  6. Step 6: Final answer
    x = 20,952.92

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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.