Home / 20,627.53-28,466.13-11,196.09

Finding the Fourth Proportional to 20,627.53, 28,466.13 and 11,196.09

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Solution

The fourth proportional to 20,627.53, 28,466.13 and 11,196.09 is: 15,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.53 : 28,466.13 = 11,196.09 : x
  2. Step 2: Convert to fraction form
    20,627.53/28,466.13 = 11,196.09/x
  3. Step 3: Cross multiply
    20,627.53x = 28,466.13 × 11,196.09
  4. Step 4: Simplify right side
    20,627.53x = 318,709,395.42
  5. Step 5: Solve for x
    x = 318,709,395.42/20,627.53
  6. Step 6: Final answer
    x = 15,450.68

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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.