Home / 40,321.48-55,642.82-22,415.80

Finding the Fourth Proportional to 40,321.48, 55,642.82 and 22,415.80

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Solution

The fourth proportional to 40,321.48, 55,642.82 and 22,415.80 is: 30,933.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,321.48 : 55,642.82 = 22,415.80 : x
  2. Step 2: Convert to fraction form
    40,321.48/55,642.82 = 22,415.80/x
  3. Step 3: Cross multiply
    40,321.48x = 55,642.82 × 22,415.80
  4. Step 4: Simplify right side
    40,321.48x = 1,247,278,324.56
  5. Step 5: Solve for x
    x = 1,247,278,324.56/40,321.48
  6. Step 6: Final answer
    x = 30,933.35

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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.