Home / 43,682.88-65,517.92-21,490.32

Finding the Fourth Proportional to 43,682.88, 65,517.92 and 21,490.32

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Solution

The fourth proportional to 43,682.88, 65,517.92 and 21,490.32 is: 32,232.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,682.88 : 65,517.92 = 21,490.32 : x
  2. Step 2: Convert to fraction form
    43,682.88/65,517.92 = 21,490.32/x
  3. Step 3: Cross multiply
    43,682.88x = 65,517.92 × 21,490.32
  4. Step 4: Simplify right side
    43,682.88x = 1,408,001,066.53
  5. Step 5: Solve for x
    x = 1,408,001,066.53/43,682.88
  6. Step 6: Final answer
    x = 32,232.33

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1.5x scale

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.