Home / 21,921.14-32,890.82-12,059.60

Finding the Fourth Proportional to 21,921.14, 32,890.82 and 12,059.60

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Solution

The fourth proportional to 21,921.14, 32,890.82 and 12,059.60 is: 18,094.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921.14 : 32,890.82 = 12,059.60 : x
  2. Step 2: Convert to fraction form
    21,921.14/32,890.82 = 12,059.60/x
  3. Step 3: Cross multiply
    21,921.14x = 32,890.82 × 12,059.60
  4. Step 4: Simplify right side
    21,921.14x = 396,649,908.12
  5. Step 5: Solve for x
    x = 396,649,908.12/21,921.14
  6. Step 6: Final answer
    x = 18,094.41

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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.