Home / 31,126.06-46,675.80-11,879.20

Finding the Fourth Proportional to 31,126.06, 46,675.80 and 11,879.20

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Solution

The fourth proportional to 31,126.06, 46,675.80 and 11,879.20 is: 17,813.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,126.06 : 46,675.80 = 11,879.20 : x
  2. Step 2: Convert to fraction form
    31,126.06/46,675.80 = 11,879.20/x
  3. Step 3: Cross multiply
    31,126.06x = 46,675.80 × 11,879.20
  4. Step 4: Simplify right side
    31,126.06x = 554,471,163.36
  5. Step 5: Solve for x
    x = 554,471,163.36/31,126.06
  6. Step 6: Final answer
    x = 17,813.73

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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.