Home / 28,099.29-38,778.66-16,163.94

Finding the Fourth Proportional to 28,099.29, 38,778.66 and 16,163.94

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Solution

The fourth proportional to 28,099.29, 38,778.66 and 16,163.94 is: 22,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.29 : 38,778.66 = 16,163.94 : x
  2. Step 2: Convert to fraction form
    28,099.29/38,778.66 = 16,163.94/x
  3. Step 3: Cross multiply
    28,099.29x = 38,778.66 × 16,163.94
  4. Step 4: Simplify right side
    28,099.29x = 626,815,933.52
  5. Step 5: Solve for x
    x = 626,815,933.52/28,099.29
  6. Step 6: Final answer
    x = 22,307.18

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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.