Home / 33,113.20-49,631.40-13,378.80

Finding the Fourth Proportional to 33,113.20, 49,631.40 and 13,378.80

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Solution

The fourth proportional to 33,113.20, 49,631.40 and 13,378.80 is: 20,052.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,113.20 : 49,631.40 = 13,378.80 : x
  2. Step 2: Convert to fraction form
    33,113.20/49,631.40 = 13,378.80/x
  3. Step 3: Cross multiply
    33,113.20x = 49,631.40 × 13,378.80
  4. Step 4: Simplify right side
    33,113.20x = 664,008,574.32
  5. Step 5: Solve for x
    x = 664,008,574.32/33,113.20
  6. Step 6: Final answer
    x = 20,052.69

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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.