Home / 28,176.44-38,880.79-16,843.68

Finding the Fourth Proportional to 28,176.44, 38,880.79 and 16,843.68

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Solution

The fourth proportional to 28,176.44, 38,880.79 and 16,843.68 is: 23,242.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.44 : 38,880.79 = 16,843.68 : x
  2. Step 2: Convert to fraction form
    28,176.44/38,880.79 = 16,843.68/x
  3. Step 3: Cross multiply
    28,176.44x = 38,880.79 × 16,843.68
  4. Step 4: Simplify right side
    28,176.44x = 654,895,542.80
  5. Step 5: Solve for x
    x = 654,895,542.80/28,176.44
  6. Step 6: Final answer
    x = 23,242.67

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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.