Home / 21,025.23-29,015.01-12,072.60

Finding the Fourth Proportional to 21,025.23, 29,015.01 and 12,072.60

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Solution

The fourth proportional to 21,025.23, 29,015.01 and 12,072.60 is: 16,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.23 : 29,015.01 = 12,072.60 : x
  2. Step 2: Convert to fraction form
    21,025.23/29,015.01 = 12,072.60/x
  3. Step 3: Cross multiply
    21,025.23x = 29,015.01 × 12,072.60
  4. Step 4: Simplify right side
    21,025.23x = 350,286,609.73
  5. Step 5: Solve for x
    x = 350,286,609.73/21,025.23
  6. Step 6: Final answer
    x = 16,660.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.