Home / 21,522.74-32,334.84-12,660.80

Finding the Fourth Proportional to 21,522.74, 32,334.84 and 12,660.80

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Solution

The fourth proportional to 21,522.74, 32,334.84 and 12,660.80 is: 19,021.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522.74 : 32,334.84 = 12,660.80 : x
  2. Step 2: Convert to fraction form
    21,522.74/32,334.84 = 12,660.80/x
  3. Step 3: Cross multiply
    21,522.74x = 32,334.84 × 12,660.80
  4. Step 4: Simplify right side
    21,522.74x = 409,384,780.60
  5. Step 5: Solve for x
    x = 409,384,780.60/21,522.74
  6. Step 6: Final answer
    x = 19,021.04

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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.