Home / 19,640.34-27,106.44-11,144.55

Finding the Fourth Proportional to 19,640.34, 27,106.44 and 11,144.55

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Solution

The fourth proportional to 19,640.34, 27,106.44 and 11,144.55 is: 15,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.34 : 27,106.44 = 11,144.55 : x
  2. Step 2: Convert to fraction form
    19,640.34/27,106.44 = 11,144.55/x
  3. Step 3: Cross multiply
    19,640.34x = 27,106.44 × 11,144.55
  4. Step 4: Simplify right side
    19,640.34x = 302,089,075.90
  5. Step 5: Solve for x
    x = 302,089,075.90/19,640.34
  6. Step 6: Final answer
    x = 15,381.05

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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.