Home / 28,981.83-39,993.84-16,406.58

Finding the Fourth Proportional to 28,981.83, 39,993.84 and 16,406.58

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Solution

The fourth proportional to 28,981.83, 39,993.84 and 16,406.58 is: 22,640.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981.83 : 39,993.84 = 16,406.58 : x
  2. Step 2: Convert to fraction form
    28,981.83/39,993.84 = 16,406.58/x
  3. Step 3: Cross multiply
    28,981.83x = 39,993.84 × 16,406.58
  4. Step 4: Simplify right side
    28,981.83x = 656,162,135.47
  5. Step 5: Solve for x
    x = 656,162,135.47/28,981.83
  6. Step 6: Final answer
    x = 22,640.47

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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.