Home / 31,650.26-43,674.48-18,220.22

Finding the Fourth Proportional to 31,650.26, 43,674.48 and 18,220.22

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Solution

The fourth proportional to 31,650.26, 43,674.48 and 18,220.22 is: 25,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,650.26 : 43,674.48 = 18,220.22 : x
  2. Step 2: Convert to fraction form
    31,650.26/43,674.48 = 18,220.22/x
  3. Step 3: Cross multiply
    31,650.26x = 43,674.48 × 18,220.22
  4. Step 4: Simplify right side
    31,650.26x = 795,758,633.99
  5. Step 5: Solve for x
    x = 795,758,633.99/31,650.26
  6. Step 6: Final answer
    x = 25,142.25

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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.