Home / 43,720.11-65,562.06-13,724.33

Finding the Fourth Proportional to 43,720.11, 65,562.06 and 13,724.33

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Solution

The fourth proportional to 43,720.11, 65,562.06 and 13,724.33 is: 20,580.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,720.11 : 65,562.06 = 13,724.33 : x
  2. Step 2: Convert to fraction form
    43,720.11/65,562.06 = 13,724.33/x
  3. Step 3: Cross multiply
    43,720.11x = 65,562.06 × 13,724.33
  4. Step 4: Simplify right side
    43,720.11x = 899,794,984.80
  5. Step 5: Solve for x
    x = 899,794,984.80/43,720.11
  6. Step 6: Final answer
    x = 20,580.80

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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.