Home / 21,922.20-32,861.70-10,830.60

Finding the Fourth Proportional to 21,922.20, 32,861.70 and 10,830.60

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Solution

The fourth proportional to 21,922.20, 32,861.70 and 10,830.60 is: 16,235.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.20 : 32,861.70 = 10,830.60 : x
  2. Step 2: Convert to fraction form
    21,922.20/32,861.70 = 10,830.60/x
  3. Step 3: Cross multiply
    21,922.20x = 32,861.70 × 10,830.60
  4. Step 4: Simplify right side
    21,922.20x = 355,911,928.02
  5. Step 5: Solve for x
    x = 355,911,928.02/21,922.20
  6. Step 6: Final answer
    x = 16,235.23

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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.