Home / 33,621.60-50,432.40-21,871.20

Finding the Fourth Proportional to 33,621.60, 50,432.40 and 21,871.20

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Solution

The fourth proportional to 33,621.60, 50,432.40 and 21,871.20 is: 32,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,621.60 : 50,432.40 = 21,871.20 : x
  2. Step 2: Convert to fraction form
    33,621.60/50,432.40 = 21,871.20/x
  3. Step 3: Cross multiply
    33,621.60x = 50,432.40 × 21,871.20
  4. Step 4: Simplify right side
    33,621.60x = 1,103,017,106.88
  5. Step 5: Solve for x
    x = 1,103,017,106.88/33,621.60
  6. Step 6: Final answer
    x = 32,806.80

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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.