Home / 21,850.08-32,745.84-20,450.40

Finding the Fourth Proportional to 21,850.08, 32,745.84 and 20,450.40

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Solution

The fourth proportional to 21,850.08, 32,745.84 and 20,450.40 is: 30,648.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,850.08 : 32,745.84 = 20,450.40 : x
  2. Step 2: Convert to fraction form
    21,850.08/32,745.84 = 20,450.40/x
  3. Step 3: Cross multiply
    21,850.08x = 32,745.84 × 20,450.40
  4. Step 4: Simplify right side
    21,850.08x = 669,665,526.34
  5. Step 5: Solve for x
    x = 669,665,526.34/21,850.08
  6. Step 6: Final answer
    x = 30,648.20

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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.