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Finding the Fourth Proportional to 33,657.60, 50,486.40 and 21,907.20

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Solution

The fourth proportional to 33,657.60, 50,486.40 and 21,907.20 is: 32,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,657.60 : 50,486.40 = 21,907.20 : x
  2. Step 2: Convert to fraction form
    33,657.60/50,486.40 = 21,907.20/x
  3. Step 3: Cross multiply
    33,657.60x = 50,486.40 × 21,907.20
  4. Step 4: Simplify right side
    33,657.60x = 1,106,015,662.08
  5. Step 5: Solve for x
    x = 1,106,015,662.08/33,657.60
  6. Step 6: Final answer
    x = 32,860.80

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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.