Home / 31,879.24-43,998.69-18,448.18

Finding the Fourth Proportional to 31,879.24, 43,998.69 and 18,448.18

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Solution

The fourth proportional to 31,879.24, 43,998.69 and 18,448.18 is: 25,461.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,879.24 : 43,998.69 = 18,448.18 : x
  2. Step 2: Convert to fraction form
    31,879.24/43,998.69 = 18,448.18/x
  3. Step 3: Cross multiply
    31,879.24x = 43,998.69 × 18,448.18
  4. Step 4: Simplify right side
    31,879.24x = 811,695,752.88
  5. Step 5: Solve for x
    x = 811,695,752.88/31,879.24
  6. Step 6: Final answer
    x = 25,461.58

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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.