Home / 21,960.85-32,954.40-20,174.25

Finding the Fourth Proportional to 21,960.85, 32,954.40 and 20,174.25

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Solution

The fourth proportional to 21,960.85, 32,954.40 and 20,174.25 is: 30,273.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.85 : 32,954.40 = 20,174.25 : x
  2. Step 2: Convert to fraction form
    21,960.85/32,954.40 = 20,174.25/x
  3. Step 3: Cross multiply
    21,960.85x = 32,954.40 × 20,174.25
  4. Step 4: Simplify right side
    21,960.85x = 664,830,205.96
  5. Step 5: Solve for x
    x = 664,830,205.96/21,960.85
  6. Step 6: Final answer
    x = 30,273.42

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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.