Home / 28,198.34-38,913.70-16,868.31

Finding the Fourth Proportional to 28,198.34, 38,913.70 and 16,868.31

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Solution

The fourth proportional to 28,198.34, 38,913.70 and 16,868.31 is: 23,278.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198.34 : 38,913.70 = 16,868.31 : x
  2. Step 2: Convert to fraction form
    28,198.34/38,913.70 = 16,868.31/x
  3. Step 3: Cross multiply
    28,198.34x = 38,913.70 × 16,868.31
  4. Step 4: Simplify right side
    28,198.34x = 656,408,378.99
  5. Step 5: Solve for x
    x = 656,408,378.99/28,198.34
  6. Step 6: Final answer
    x = 23,278.27

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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.