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Finding the Fourth Proportional to 36,011.40, 54,041.40 and 21,204.60

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Solution

The fourth proportional to 36,011.40, 54,041.40 and 21,204.60 is: 31,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,011.40 : 54,041.40 = 21,204.60 : x
  2. Step 2: Convert to fraction form
    36,011.40/54,041.40 = 21,204.60/x
  3. Step 3: Cross multiply
    36,011.40x = 54,041.40 × 21,204.60
  4. Step 4: Simplify right side
    36,011.40x = 1,145,926,270.44
  5. Step 5: Solve for x
    x = 1,145,926,270.44/36,011.40
  6. Step 6: Final answer
    x = 31,821.21

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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.