Home / 31,648.44-43,673.53-18,221.07

Finding the Fourth Proportional to 31,648.44, 43,673.53 and 18,221.07

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Solution

The fourth proportional to 31,648.44, 43,673.53 and 18,221.07 is: 25,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,648.44 : 43,673.53 = 18,221.07 : x
  2. Step 2: Convert to fraction form
    31,648.44/43,673.53 = 18,221.07/x
  3. Step 3: Cross multiply
    31,648.44x = 43,673.53 × 18,221.07
  4. Step 4: Simplify right side
    31,648.44x = 795,778,447.28
  5. Step 5: Solve for x
    x = 795,778,447.28/31,648.44
  6. Step 6: Final answer
    x = 25,144.32

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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.