Home / 20,629.03-28,468.21-11,197.59

Finding the Fourth Proportional to 20,629.03, 28,468.21 and 11,197.59

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Solution

The fourth proportional to 20,629.03, 28,468.21 and 11,197.59 is: 15,452.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.03 : 28,468.21 = 11,197.59 : x
  2. Step 2: Convert to fraction form
    20,629.03/28,468.21 = 11,197.59/x
  3. Step 3: Cross multiply
    20,629.03x = 28,468.21 × 11,197.59
  4. Step 4: Simplify right side
    20,629.03x = 318,775,343.61
  5. Step 5: Solve for x
    x = 318,775,343.61/20,629.03
  6. Step 6: Final answer
    x = 15,452.75

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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.