Home / 28,099.69-38,778.68-16,163.01

Finding the Fourth Proportional to 28,099.69, 38,778.68 and 16,163.01

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Solution

The fourth proportional to 28,099.69, 38,778.68 and 16,163.01 is: 22,305.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.69 : 38,778.68 = 16,163.01 : x
  2. Step 2: Convert to fraction form
    28,099.69/38,778.68 = 16,163.01/x
  3. Step 3: Cross multiply
    28,099.69x = 38,778.68 × 16,163.01
  4. Step 4: Simplify right side
    28,099.69x = 626,780,233.03
  5. Step 5: Solve for x
    x = 626,780,233.03/28,099.69
  6. Step 6: Final answer
    x = 22,305.59

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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.