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Finding the Fourth Proportional to 33,220.60, 49,806.10 and 20,070.20

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Solution

The fourth proportional to 33,220.60, 49,806.10 and 20,070.20 is: 30,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,220.60 : 49,806.10 = 20,070.20 : x
  2. Step 2: Convert to fraction form
    33,220.60/49,806.10 = 20,070.20/x
  3. Step 3: Cross multiply
    33,220.60x = 49,806.10 × 20,070.20
  4. Step 4: Simplify right side
    33,220.60x = 999,618,388.22
  5. Step 5: Solve for x
    x = 999,618,388.22/33,220.60
  6. Step 6: Final answer
    x = 30,090.32

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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.