Home / 43,540.87-65,268.25-21,009.99

Finding the Fourth Proportional to 43,540.87, 65,268.25 and 21,009.99

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Solution

The fourth proportional to 43,540.87, 65,268.25 and 21,009.99 is: 31,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,540.87 : 65,268.25 = 21,009.99 : x
  2. Step 2: Convert to fraction form
    43,540.87/65,268.25 = 21,009.99/x
  3. Step 3: Cross multiply
    43,540.87x = 65,268.25 × 21,009.99
  4. Step 4: Simplify right side
    43,540.87x = 1,371,284,848.43
  5. Step 5: Solve for x
    x = 1,371,284,848.43/43,540.87
  6. Step 6: Final answer
    x = 31,494.20

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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.