Home / 31,568.22-43,561.66-18,820.44

Finding the Fourth Proportional to 31,568.22, 43,561.66 and 18,820.44

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Solution

The fourth proportional to 31,568.22, 43,561.66 and 18,820.44 is: 25,970.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,568.22 : 43,561.66 = 18,820.44 : x
  2. Step 2: Convert to fraction form
    31,568.22/43,561.66 = 18,820.44/x
  3. Step 3: Cross multiply
    31,568.22x = 43,561.66 × 18,820.44
  4. Step 4: Simplify right side
    31,568.22x = 819,849,608.33
  5. Step 5: Solve for x
    x = 819,849,608.33/31,568.22
  6. Step 6: Final answer
    x = 25,970.73

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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.