Home / 25,768.70-35,567.81-15,161.75

Finding the Fourth Proportional to 25,768.70, 35,567.81 and 15,161.75

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Solution

The fourth proportional to 25,768.70, 35,567.81 and 15,161.75 is: 20,927.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,768.70 : 35,567.81 = 15,161.75 : x
  2. Step 2: Convert to fraction form
    25,768.70/35,567.81 = 15,161.75/x
  3. Step 3: Cross multiply
    25,768.70x = 35,567.81 × 15,161.75
  4. Step 4: Simplify right side
    25,768.70x = 539,269,989.62
  5. Step 5: Solve for x
    x = 539,269,989.62/25,768.70
  6. Step 6: Final answer
    x = 20,927.33

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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.