Home / 28,908.21-39,891.87-16,974.48

Finding the Fourth Proportional to 28,908.21, 39,891.87 and 16,974.48

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Solution

The fourth proportional to 28,908.21, 39,891.87 and 16,974.48 is: 23,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.21 : 39,891.87 = 16,974.48 : x
  2. Step 2: Convert to fraction form
    28,908.21/39,891.87 = 16,974.48/x
  3. Step 3: Cross multiply
    28,908.21x = 39,891.87 × 16,974.48
  4. Step 4: Simplify right side
    28,908.21x = 677,143,749.48
  5. Step 5: Solve for x
    x = 677,143,749.48/28,908.21
  6. Step 6: Final answer
    x = 23,423.93

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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.