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Finding the Fourth Proportional to 33,984.60, 50,870.79 and 21,485.90

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Solution

The fourth proportional to 33,984.60, 50,870.79 and 21,485.90 is: 32,161.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,984.60 : 50,870.79 = 21,485.90 : x
  2. Step 2: Convert to fraction form
    33,984.60/50,870.79 = 21,485.90/x
  3. Step 3: Cross multiply
    33,984.60x = 50,870.79 × 21,485.90
  4. Step 4: Simplify right side
    33,984.60x = 1,093,004,452.51
  5. Step 5: Solve for x
    x = 1,093,004,452.51/33,984.60
  6. Step 6: Final answer
    x = 32,161.76

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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.