Home / 20,627.85-28,466.25-11,196.39

Finding the Fourth Proportional to 20,627.85, 28,466.25 and 11,196.39

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Solution

The fourth proportional to 20,627.85, 28,466.25 and 11,196.39 is: 15,450.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.85 : 28,466.25 = 11,196.39 : x
  2. Step 2: Convert to fraction form
    20,627.85/28,466.25 = 11,196.39/x
  3. Step 3: Cross multiply
    20,627.85x = 28,466.25 × 11,196.39
  4. Step 4: Simplify right side
    20,627.85x = 318,719,236.84
  5. Step 5: Solve for x
    x = 318,719,236.84/20,627.85
  6. Step 6: Final answer
    x = 15,450.92

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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.