Home / 36,218.40-54,351.90-21,411.60

Finding the Fourth Proportional to 36,218.40, 54,351.90 and 21,411.60

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Solution

The fourth proportional to 36,218.40, 54,351.90 and 21,411.60 is: 32,131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,218.40 : 54,351.90 = 21,411.60 : x
  2. Step 2: Convert to fraction form
    36,218.40/54,351.90 = 21,411.60/x
  3. Step 3: Cross multiply
    36,218.40x = 54,351.90 × 21,411.60
  4. Step 4: Simplify right side
    36,218.40x = 1,163,761,142.04
  5. Step 5: Solve for x
    x = 1,163,761,142.04/36,218.40
  6. Step 6: Final answer
    x = 32,131.77

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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.