Home / 21,917.56-32,812.98-12,884.44

Finding the Fourth Proportional to 21,917.56, 32,812.98 and 12,884.44

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Solution

The fourth proportional to 21,917.56, 32,812.98 and 12,884.44 is: 19,289.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917.56 : 32,812.98 = 12,884.44 : x
  2. Step 2: Convert to fraction form
    21,917.56/32,812.98 = 12,884.44/x
  3. Step 3: Cross multiply
    21,917.56x = 32,812.98 × 12,884.44
  4. Step 4: Simplify right side
    21,917.56x = 422,776,872.03
  5. Step 5: Solve for x
    x = 422,776,872.03/21,917.56
  6. Step 6: Final answer
    x = 19,289.41

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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.