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Finding the Fourth Proportional to 33,378.48, 50,118.48 and 20,975.76

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Solution

The fourth proportional to 33,378.48, 50,118.48 and 20,975.76 is: 31,495.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,378.48 : 50,118.48 = 20,975.76 : x
  2. Step 2: Convert to fraction form
    33,378.48/50,118.48 = 20,975.76/x
  3. Step 3: Cross multiply
    33,378.48x = 50,118.48 × 20,975.76
  4. Step 4: Simplify right side
    33,378.48x = 1,051,273,208.04
  5. Step 5: Solve for x
    x = 1,051,273,208.04/33,378.48
  6. Step 6: Final answer
    x = 31,495.54

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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.