Home / 28,986.72-43,480.64-19,054.75

Finding the Fourth Proportional to 28,986.72, 43,480.64 and 19,054.75

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Solution

The fourth proportional to 28,986.72, 43,480.64 and 19,054.75 is: 28,582.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.72 : 43,480.64 = 19,054.75 : x
  2. Step 2: Convert to fraction form
    28,986.72/43,480.64 = 19,054.75/x
  3. Step 3: Cross multiply
    28,986.72x = 43,480.64 × 19,054.75
  4. Step 4: Simplify right side
    28,986.72x = 828,512,642.10
  5. Step 5: Solve for x
    x = 828,512,642.10/28,986.72
  6. Step 6: Final answer
    x = 28,582.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.