Home / 49,984.80-74,919.60-20,383.20

Finding the Fourth Proportional to 49,984.80, 74,919.60 and 20,383.20

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Solution

The fourth proportional to 49,984.80, 74,919.60 and 20,383.20 is: 30,551.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,984.80 : 74,919.60 = 20,383.20 : x
  2. Step 2: Convert to fraction form
    49,984.80/74,919.60 = 20,383.20/x
  3. Step 3: Cross multiply
    49,984.80x = 74,919.60 × 20,383.20
  4. Step 4: Simplify right side
    49,984.80x = 1,527,101,190.72
  5. Step 5: Solve for x
    x = 1,527,101,190.72/49,984.80
  6. Step 6: Final answer
    x = 30,551.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.