Home / 29,109.21-43,628.53-20,662.43

Finding the Fourth Proportional to 29,109.21, 43,628.53 and 20,662.43

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Solution

The fourth proportional to 29,109.21, 43,628.53 and 20,662.43 is: 30,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,109.21 : 43,628.53 = 20,662.43 : x
  2. Step 2: Convert to fraction form
    29,109.21/43,628.53 = 20,662.43/x
  3. Step 3: Cross multiply
    29,109.21x = 43,628.53 × 20,662.43
  4. Step 4: Simplify right side
    29,109.21x = 901,471,447.13
  5. Step 5: Solve for x
    x = 901,471,447.13/29,109.21
  6. Step 6: Final answer
    x = 30,968.60

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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.