Home / 25,786.61-35,583.67-15,174.80

Finding the Fourth Proportional to 25,786.61, 35,583.67 and 15,174.80

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Solution

The fourth proportional to 25,786.61, 35,583.67 and 15,174.80 is: 20,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,786.61 : 35,583.67 = 15,174.80 : x
  2. Step 2: Convert to fraction form
    25,786.61/35,583.67 = 15,174.80/x
  3. Step 3: Cross multiply
    25,786.61x = 35,583.67 × 15,174.80
  4. Step 4: Simplify right side
    25,786.61x = 539,975,075.52
  5. Step 5: Solve for x
    x = 539,975,075.52/25,786.61
  6. Step 6: Final answer
    x = 20,940.13

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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.