Home / 20,426.44-30,647.38-13,914.04

Finding the Fourth Proportional to 20,426.44, 30,647.38 and 13,914.04

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Solution

The fourth proportional to 20,426.44, 30,647.38 and 13,914.04 is: 20,876.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.44 : 30,647.38 = 13,914.04 : x
  2. Step 2: Convert to fraction form
    20,426.44/30,647.38 = 13,914.04/x
  3. Step 3: Cross multiply
    20,426.44x = 30,647.38 × 13,914.04
  4. Step 4: Simplify right side
    20,426.44x = 426,428,871.22
  5. Step 5: Solve for x
    x = 426,428,871.22/20,426.44
  6. Step 6: Final answer
    x = 20,876.32

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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.