Home / 33,871.39-46,741.89-20,443.21

Finding the Fourth Proportional to 33,871.39, 46,741.89 and 20,443.21

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Solution

The fourth proportional to 33,871.39, 46,741.89 and 20,443.21 is: 28,211.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,871.39 : 46,741.89 = 20,443.21 : x
  2. Step 2: Convert to fraction form
    33,871.39/46,741.89 = 20,443.21/x
  3. Step 3: Cross multiply
    33,871.39x = 46,741.89 × 20,443.21
  4. Step 4: Simplify right side
    33,871.39x = 955,554,191.85
  5. Step 5: Solve for x
    x = 955,554,191.85/33,871.39
  6. Step 6: Final answer
    x = 28,211.25

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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.