Home / 21,956.20-32,940.43-8,817.80

Finding the Fourth Proportional to 21,956.20, 32,940.43 and 8,817.80

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Solution

The fourth proportional to 21,956.20, 32,940.43 and 8,817.80 is: 13,229.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.20 : 32,940.43 = 8,817.80 : x
  2. Step 2: Convert to fraction form
    21,956.20/32,940.43 = 8,817.80/x
  3. Step 3: Cross multiply
    21,956.20x = 32,940.43 × 8,817.80
  4. Step 4: Simplify right side
    21,956.20x = 290,461,936.91
  5. Step 5: Solve for x
    x = 290,461,936.91/21,956.20
  6. Step 6: Final answer
    x = 13,229.15

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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.