Home / 33,386.98-46,074.05-20,811.78

Finding the Fourth Proportional to 33,386.98, 46,074.05 and 20,811.78

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Solution

The fourth proportional to 33,386.98, 46,074.05 and 20,811.78 is: 28,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,386.98 : 46,074.05 = 20,811.78 : x
  2. Step 2: Convert to fraction form
    33,386.98/46,074.05 = 20,811.78/x
  3. Step 3: Cross multiply
    33,386.98x = 46,074.05 × 20,811.78
  4. Step 4: Simplify right side
    33,386.98x = 958,882,992.31
  5. Step 5: Solve for x
    x = 958,882,992.31/33,386.98
  6. Step 6: Final answer
    x = 28,720.27

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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.