Home / 28,768.38-39,697.83-16,020.60

Finding the Fourth Proportional to 28,768.38, 39,697.83 and 16,020.60

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Solution

The fourth proportional to 28,768.38, 39,697.83 and 16,020.60 is: 22,107.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.38 : 39,697.83 = 16,020.60 : x
  2. Step 2: Convert to fraction form
    28,768.38/39,697.83 = 16,020.60/x
  3. Step 3: Cross multiply
    28,768.38x = 39,697.83 × 16,020.60
  4. Step 4: Simplify right side
    28,768.38x = 635,983,055.30
  5. Step 5: Solve for x
    x = 635,983,055.30/28,768.38
  6. Step 6: Final answer
    x = 22,107.02

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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.