Home / 28,696.12-39,600.50-16,120.84

Finding the Fourth Proportional to 28,696.12, 39,600.50 and 16,120.84

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Solution

The fourth proportional to 28,696.12, 39,600.50 and 16,120.84 is: 22,246.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,696.12 : 39,600.50 = 16,120.84 : x
  2. Step 2: Convert to fraction form
    28,696.12/39,600.50 = 16,120.84/x
  3. Step 3: Cross multiply
    28,696.12x = 39,600.50 × 16,120.84
  4. Step 4: Simplify right side
    28,696.12x = 638,393,324.42
  5. Step 5: Solve for x
    x = 638,393,324.42/28,696.12
  6. Step 6: Final answer
    x = 22,246.68

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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.