Home / 20,850.03-31,296.12-18,493.56

Finding the Fourth Proportional to 20,850.03, 31,296.12 and 18,493.56

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Solution

The fourth proportional to 20,850.03, 31,296.12 and 18,493.56 is: 27,759.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.03 : 31,296.12 = 18,493.56 : x
  2. Step 2: Convert to fraction form
    20,850.03/31,296.12 = 18,493.56/x
  3. Step 3: Cross multiply
    20,850.03x = 31,296.12 × 18,493.56
  4. Step 4: Simplify right side
    20,850.03x = 578,776,672.99
  5. Step 5: Solve for x
    x = 578,776,672.99/20,850.03
  6. Step 6: Final answer
    x = 27,759.03

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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.