Home / 30,072.80-41,534.57-20,496.31

Finding the Fourth Proportional to 30,072.80, 41,534.57 and 20,496.31

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Solution

The fourth proportional to 30,072.80, 41,534.57 and 20,496.31 is: 28,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072.80 : 41,534.57 = 20,496.31 : x
  2. Step 2: Convert to fraction form
    30,072.80/41,534.57 = 20,496.31/x
  3. Step 3: Cross multiply
    30,072.80x = 41,534.57 × 20,496.31
  4. Step 4: Simplify right side
    30,072.80x = 851,305,369.84
  5. Step 5: Solve for x
    x = 851,305,369.84/30,072.80
  6. Step 6: Final answer
    x = 28,308.15

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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.