Home / 33,219.20-49,761.60-20,700.80

Finding the Fourth Proportional to 33,219.20, 49,761.60 and 20,700.80

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Solution

The fourth proportional to 33,219.20, 49,761.60 and 20,700.80 is: 31,009.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,219.20 : 49,761.60 = 20,700.80 : x
  2. Step 2: Convert to fraction form
    33,219.20/49,761.60 = 20,700.80/x
  3. Step 3: Cross multiply
    33,219.20x = 49,761.60 × 20,700.80
  4. Step 4: Simplify right side
    33,219.20x = 1,030,104,929.28
  5. Step 5: Solve for x
    x = 1,030,104,929.28/33,219.20
  6. Step 6: Final answer
    x = 31,009.32

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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.