Home / 28,197.53-38,912.46-15,450.69

Finding the Fourth Proportional to 28,197.53, 38,912.46 and 15,450.69

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Solution

The fourth proportional to 28,197.53, 38,912.46 and 15,450.69 is: 21,321.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.53 : 38,912.46 = 15,450.69 : x
  2. Step 2: Convert to fraction form
    28,197.53/38,912.46 = 15,450.69/x
  3. Step 3: Cross multiply
    28,197.53x = 38,912.46 × 15,450.69
  4. Step 4: Simplify right side
    28,197.53x = 601,224,356.60
  5. Step 5: Solve for x
    x = 601,224,356.60/28,197.53
  6. Step 6: Final answer
    x = 21,321.88

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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.