Home / 40,399.75-60,549-21,633.27

Finding the Fourth Proportional to 40,399.75, 60,549 and 21,633.27

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Solution

The fourth proportional to 40,399.75, 60,549 and 21,633.27 is: 32,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,399.75 : 60,549 = 21,633.27 : x
  2. Step 2: Convert to fraction form
    40,399.75/60,549 = 21,633.27/x
  3. Step 3: Cross multiply
    40,399.75x = 60,549 × 21,633.27
  4. Step 4: Simplify right side
    40,399.75x = 1,309,872,865.23
  5. Step 5: Solve for x
    x = 1,309,872,865.23/40,399.75
  6. Step 6: Final answer
    x = 32,422.80

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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.