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Finding the Fourth Proportional to 36,955.80, 55,441.80 and 21,144.60

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Solution

The fourth proportional to 36,955.80, 55,441.80 and 21,144.60 is: 31,721.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,955.80 : 55,441.80 = 21,144.60 : x
  2. Step 2: Convert to fraction form
    36,955.80/55,441.80 = 21,144.60/x
  3. Step 3: Cross multiply
    36,955.80x = 55,441.80 × 21,144.60
  4. Step 4: Simplify right side
    36,955.80x = 1,172,294,684.28
  5. Step 5: Solve for x
    x = 1,172,294,684.28/36,955.80
  6. Step 6: Final answer
    x = 31,721.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.