Home / 33,153.09-45,752-18,813.86

Finding the Fourth Proportional to 33,153.09, 45,752 and 18,813.86

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Solution

The fourth proportional to 33,153.09, 45,752 and 18,813.86 is: 25,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,153.09 : 45,752 = 18,813.86 : x
  2. Step 2: Convert to fraction form
    33,153.09/45,752 = 18,813.86/x
  3. Step 3: Cross multiply
    33,153.09x = 45,752 × 18,813.86
  4. Step 4: Simplify right side
    33,153.09x = 860,771,722.72
  5. Step 5: Solve for x
    x = 860,771,722.72/33,153.09
  6. Step 6: Final answer
    x = 25,963.54

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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.