Home / 28,130.87-38,830.37-16,198.96

Finding the Fourth Proportional to 28,130.87, 38,830.37 and 16,198.96

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Solution

The fourth proportional to 28,130.87, 38,830.37 and 16,198.96 is: 22,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.87 : 38,830.37 = 16,198.96 : x
  2. Step 2: Convert to fraction form
    28,130.87/38,830.37 = 16,198.96/x
  3. Step 3: Cross multiply
    28,130.87x = 38,830.37 × 16,198.96
  4. Step 4: Simplify right side
    28,130.87x = 629,011,610.42
  5. Step 5: Solve for x
    x = 629,011,610.42/28,130.87
  6. Step 6: Final answer
    x = 22,360.19

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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.