Home / 33,428.05-46,129.26-19,991.36

Finding the Fourth Proportional to 33,428.05, 46,129.26 and 19,991.36

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Solution

The fourth proportional to 33,428.05, 46,129.26 and 19,991.36 is: 27,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,428.05 : 46,129.26 = 19,991.36 : x
  2. Step 2: Convert to fraction form
    33,428.05/46,129.26 = 19,991.36/x
  3. Step 3: Cross multiply
    33,428.05x = 46,129.26 × 19,991.36
  4. Step 4: Simplify right side
    33,428.05x = 922,186,833.48
  5. Step 5: Solve for x
    x = 922,186,833.48/33,428.05
  6. Step 6: Final answer
    x = 27,587.22

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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.