Home / 31,112.49-46,668.90-7,738.92

Finding the Fourth Proportional to 31,112.49, 46,668.90 and 7,738.92

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Solution

The fourth proportional to 31,112.49, 46,668.90 and 7,738.92 is: 11,608.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,112.49 : 46,668.90 = 7,738.92 : x
  2. Step 2: Convert to fraction form
    31,112.49/46,668.90 = 7,738.92/x
  3. Step 3: Cross multiply
    31,112.49x = 46,668.90 × 7,738.92
  4. Step 4: Simplify right side
    31,112.49x = 361,166,980.91
  5. Step 5: Solve for x
    x = 361,166,980.91/31,112.49
  6. Step 6: Final answer
    x = 11,608.43

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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.