Home / 30,135.86-41,587.44-18,196.86

Finding the Fourth Proportional to 30,135.86, 41,587.44 and 18,196.86

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Solution

The fourth proportional to 30,135.86, 41,587.44 and 18,196.86 is: 25,111.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,135.86 : 41,587.44 = 18,196.86 : x
  2. Step 2: Convert to fraction form
    30,135.86/41,587.44 = 18,196.86/x
  3. Step 3: Cross multiply
    30,135.86x = 41,587.44 × 18,196.86
  4. Step 4: Simplify right side
    30,135.86x = 756,760,823.44
  5. Step 5: Solve for x
    x = 756,760,823.44/30,135.86
  6. Step 6: Final answer
    x = 25,111.64

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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.