Home / 20,629-28,467.56-11,197.56

Finding the Fourth Proportional to 20,629, 28,467.56 and 11,197.56

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Solution

The fourth proportional to 20,629, 28,467.56 and 11,197.56 is: 15,452.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629 : 28,467.56 = 11,197.56 : x
  2. Step 2: Convert to fraction form
    20,629/28,467.56 = 11,197.56/x
  3. Step 3: Cross multiply
    20,629x = 28,467.56 × 11,197.56
  4. Step 4: Simplify right side
    20,629x = 318,767,211.15
  5. Step 5: Solve for x
    x = 318,767,211.15/20,629
  6. Step 6: Final answer
    x = 15,452.38

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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.