Home / 31,176.88-46,771.42-11,455.60

Finding the Fourth Proportional to 31,176.88, 46,771.42 and 11,455.60

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Solution

The fourth proportional to 31,176.88, 46,771.42 and 11,455.60 is: 17,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,176.88 : 46,771.42 = 11,455.60 : x
  2. Step 2: Convert to fraction form
    31,176.88/46,771.42 = 11,455.60/x
  3. Step 3: Cross multiply
    31,176.88x = 46,771.42 × 11,455.60
  4. Step 4: Simplify right side
    31,176.88x = 535,794,678.95
  5. Step 5: Solve for x
    x = 535,794,678.95/31,176.88
  6. Step 6: Final answer
    x = 17,185.64

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1.5x scale

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.