Home / 31,112.36-46,668.73-7,738.80

Finding the Fourth Proportional to 31,112.36, 46,668.73 and 7,738.80

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Solution

The fourth proportional to 31,112.36, 46,668.73 and 7,738.80 is: 11,608.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,112.36 : 46,668.73 = 7,738.80 : x
  2. Step 2: Convert to fraction form
    31,112.36/46,668.73 = 7,738.80/x
  3. Step 3: Cross multiply
    31,112.36x = 46,668.73 × 7,738.80
  4. Step 4: Simplify right side
    31,112.36x = 361,159,967.72
  5. Step 5: Solve for x
    x = 361,159,967.72/31,112.36
  6. Step 6: Final answer
    x = 11,608.25

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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.