Home / 20,627.03-28,464.95-11,195.39

Finding the Fourth Proportional to 20,627.03, 28,464.95 and 11,195.39

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Solution

The fourth proportional to 20,627.03, 28,464.95 and 11,195.39 is: 15,449.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.03 : 28,464.95 = 11,195.39 : x
  2. Step 2: Convert to fraction form
    20,627.03/28,464.95 = 11,195.39/x
  3. Step 3: Cross multiply
    20,627.03x = 28,464.95 × 11,195.39
  4. Step 4: Simplify right side
    20,627.03x = 318,676,160.60
  5. Step 5: Solve for x
    x = 318,676,160.60/20,627.03
  6. Step 6: Final answer
    x = 15,449.44

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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.