Home / 31,879.99-43,999.73-18,448.93

Finding the Fourth Proportional to 31,879.99, 43,999.73 and 18,448.93

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Solution

The fourth proportional to 31,879.99, 43,999.73 and 18,448.93 is: 25,462.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,879.99 : 43,999.73 = 18,448.93 : x
  2. Step 2: Convert to fraction form
    31,879.99/43,999.73 = 18,448.93/x
  3. Step 3: Cross multiply
    31,879.99x = 43,999.73 × 18,448.93
  4. Step 4: Simplify right side
    31,879.99x = 811,747,846.54
  5. Step 5: Solve for x
    x = 811,747,846.54/31,879.99
  6. Step 6: Final answer
    x = 25,462.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.