Home / 40,121.09-55,366.43-22,215.71

Finding the Fourth Proportional to 40,121.09, 55,366.43 and 22,215.71

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Solution

The fourth proportional to 40,121.09, 55,366.43 and 22,215.71 is: 30,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.09 : 55,366.43 = 22,215.71 : x
  2. Step 2: Convert to fraction form
    40,121.09/55,366.43 = 22,215.71/x
  3. Step 3: Cross multiply
    40,121.09x = 55,366.43 × 22,215.71
  4. Step 4: Simplify right side
    40,121.09x = 1,230,004,372.33
  5. Step 5: Solve for x
    x = 1,230,004,372.33/40,121.09
  6. Step 6: Final answer
    x = 30,657.30

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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.