Home / 28,738.69-39,654.82-16,161.01

Finding the Fourth Proportional to 28,738.69, 39,654.82 and 16,161.01

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Solution

The fourth proportional to 28,738.69, 39,654.82 and 16,161.01 is: 22,299.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.69 : 39,654.82 = 16,161.01 : x
  2. Step 2: Convert to fraction form
    28,738.69/39,654.82 = 16,161.01/x
  3. Step 3: Cross multiply
    28,738.69x = 39,654.82 × 16,161.01
  4. Step 4: Simplify right side
    28,738.69x = 640,861,942.57
  5. Step 5: Solve for x
    x = 640,861,942.57/28,738.69
  6. Step 6: Final answer
    x = 22,299.62

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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.