Home / 33,170.13-45,790.44-21,240.39

Finding the Fourth Proportional to 33,170.13, 45,790.44 and 21,240.39

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Solution

The fourth proportional to 33,170.13, 45,790.44 and 21,240.39 is: 29,321.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,170.13 : 45,790.44 = 21,240.39 : x
  2. Step 2: Convert to fraction form
    33,170.13/45,790.44 = 21,240.39/x
  3. Step 3: Cross multiply
    33,170.13x = 45,790.44 × 21,240.39
  4. Step 4: Simplify right side
    33,170.13x = 972,606,803.87
  5. Step 5: Solve for x
    x = 972,606,803.87/33,170.13
  6. Step 6: Final answer
    x = 29,321.77

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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.