Home / 31,629.06-43,643.58-18,195.18

Finding the Fourth Proportional to 31,629.06, 43,643.58 and 18,195.18

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Solution

The fourth proportional to 31,629.06, 43,643.58 and 18,195.18 is: 25,106.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,629.06 : 43,643.58 = 18,195.18 : x
  2. Step 2: Convert to fraction form
    31,629.06/43,643.58 = 18,195.18/x
  3. Step 3: Cross multiply
    31,629.06x = 43,643.58 × 18,195.18
  4. Step 4: Simplify right side
    31,629.06x = 794,102,793.94
  5. Step 5: Solve for x
    x = 794,102,793.94/31,629.06
  6. Step 6: Final answer
    x = 25,106.75

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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.