Home / 33,438.51-46,143.84-20,001.78

Finding the Fourth Proportional to 33,438.51, 46,143.84 and 20,001.78

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Solution

The fourth proportional to 33,438.51, 46,143.84 and 20,001.78 is: 27,601.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,438.51 : 46,143.84 = 20,001.78 : x
  2. Step 2: Convert to fraction form
    33,438.51/46,143.84 = 20,001.78/x
  3. Step 3: Cross multiply
    33,438.51x = 46,143.84 × 20,001.78
  4. Step 4: Simplify right side
    33,438.51x = 922,958,936.04
  5. Step 5: Solve for x
    x = 922,958,936.04/33,438.51
  6. Step 6: Final answer
    x = 27,601.68

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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.