Home / 28,140.35-38,829.38-16,201.76

Finding the Fourth Proportional to 28,140.35, 38,829.38 and 16,201.76

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Solution

The fourth proportional to 28,140.35, 38,829.38 and 16,201.76 is: 22,355.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.35 : 38,829.38 = 16,201.76 : x
  2. Step 2: Convert to fraction form
    28,140.35/38,829.38 = 16,201.76/x
  3. Step 3: Cross multiply
    28,140.35x = 38,829.38 × 16,201.76
  4. Step 4: Simplify right side
    28,140.35x = 629,104,020.55
  5. Step 5: Solve for x
    x = 629,104,020.55/28,140.35
  6. Step 6: Final answer
    x = 22,355.95

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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.