Home / 20,225.99-27,912.93-11,274.41

Finding the Fourth Proportional to 20,225.99, 27,912.93 and 11,274.41

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Solution

The fourth proportional to 20,225.99, 27,912.93 and 11,274.41 is: 15,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.99 : 27,912.93 = 11,274.41 : x
  2. Step 2: Convert to fraction form
    20,225.99/27,912.93 = 11,274.41/x
  3. Step 3: Cross multiply
    20,225.99x = 27,912.93 × 11,274.41
  4. Step 4: Simplify right side
    20,225.99x = 314,701,817.12
  5. Step 5: Solve for x
    x = 314,701,817.12/20,225.99
  6. Step 6: Final answer
    x = 15,559.28

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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.