Home / 31,314.08-46,971.36-7,940.48

Finding the Fourth Proportional to 31,314.08, 46,971.36 and 7,940.48

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Solution

The fourth proportional to 31,314.08, 46,971.36 and 7,940.48 is: 11,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,314.08 : 46,971.36 = 7,940.48 : x
  2. Step 2: Convert to fraction form
    31,314.08/46,971.36 = 7,940.48/x
  3. Step 3: Cross multiply
    31,314.08x = 46,971.36 × 7,940.48
  4. Step 4: Simplify right side
    31,314.08x = 372,975,144.65
  5. Step 5: Solve for x
    x = 372,975,144.65/31,314.08
  6. Step 6: Final answer
    x = 11,910.78

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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.