Home / 33,205.20-49,740.60-20,686.80

Finding the Fourth Proportional to 33,205.20, 49,740.60 and 20,686.80

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Solution

The fourth proportional to 33,205.20, 49,740.60 and 20,686.80 is: 30,988.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,205.20 : 49,740.60 = 20,686.80 : x
  2. Step 2: Convert to fraction form
    33,205.20/49,740.60 = 20,686.80/x
  3. Step 3: Cross multiply
    33,205.20x = 49,740.60 × 20,686.80
  4. Step 4: Simplify right side
    33,205.20x = 1,028,973,844.08
  5. Step 5: Solve for x
    x = 1,028,973,844.08/33,205.20
  6. Step 6: Final answer
    x = 30,988.33

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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.