Home / 28,673.40-43,012.80-11,144.60

Finding the Fourth Proportional to 28,673.40, 43,012.80 and 11,144.60

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Solution

The fourth proportional to 28,673.40, 43,012.80 and 11,144.60 is: 16,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.40 : 43,012.80 = 11,144.60 : x
  2. Step 2: Convert to fraction form
    28,673.40/43,012.80 = 11,144.60/x
  3. Step 3: Cross multiply
    28,673.40x = 43,012.80 × 11,144.60
  4. Step 4: Simplify right side
    28,673.40x = 479,360,450.88
  5. Step 5: Solve for x
    x = 479,360,450.88/28,673.40
  6. Step 6: Final answer
    x = 16,717.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.