Home / 33,638.60-50,460.35-13,638.48

Finding the Fourth Proportional to 33,638.60, 50,460.35 and 13,638.48

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Solution

The fourth proportional to 33,638.60, 50,460.35 and 13,638.48 is: 20,458.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,638.60 : 50,460.35 = 13,638.48 : x
  2. Step 2: Convert to fraction form
    33,638.60/50,460.35 = 13,638.48/x
  3. Step 3: Cross multiply
    33,638.60x = 50,460.35 × 13,638.48
  4. Step 4: Simplify right side
    33,638.60x = 688,202,406.08
  5. Step 5: Solve for x
    x = 688,202,406.08/33,638.60
  6. Step 6: Final answer
    x = 20,458.71

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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.