Home / 21,550.41-29,738.93-13,057.56

Finding the Fourth Proportional to 21,550.41, 29,738.93 and 13,057.56

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Solution

The fourth proportional to 21,550.41, 29,738.93 and 13,057.56 is: 18,019.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.41 : 29,738.93 = 13,057.56 : x
  2. Step 2: Convert to fraction form
    21,550.41/29,738.93 = 13,057.56/x
  3. Step 3: Cross multiply
    21,550.41x = 29,738.93 × 13,057.56
  4. Step 4: Simplify right side
    21,550.41x = 388,317,797.52
  5. Step 5: Solve for x
    x = 388,317,797.52/21,550.41
  6. Step 6: Final answer
    x = 18,019.04

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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.