Home / 43,933.53-65,817.63-21,720.90

Finding the Fourth Proportional to 43,933.53, 65,817.63 and 21,720.90

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Solution

The fourth proportional to 43,933.53, 65,817.63 and 21,720.90 is: 32,540.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,933.53 : 65,817.63 = 21,720.90 : x
  2. Step 2: Convert to fraction form
    43,933.53/65,817.63 = 21,720.90/x
  3. Step 3: Cross multiply
    43,933.53x = 65,817.63 × 21,720.90
  4. Step 4: Simplify right side
    43,933.53x = 1,429,618,159.47
  5. Step 5: Solve for x
    x = 1,429,618,159.47/43,933.53
  6. Step 6: Final answer
    x = 32,540.48

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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.