Home / 20,614.88-28,448.37-11,662.31

Finding the Fourth Proportional to 20,614.88, 28,448.37 and 11,662.31

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Solution

The fourth proportional to 20,614.88, 28,448.37 and 11,662.31 is: 16,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.88 : 28,448.37 = 11,662.31 : x
  2. Step 2: Convert to fraction form
    20,614.88/28,448.37 = 11,662.31/x
  3. Step 3: Cross multiply
    20,614.88x = 28,448.37 × 11,662.31
  4. Step 4: Simplify right side
    20,614.88x = 331,773,781.06
  5. Step 5: Solve for x
    x = 331,773,781.06/20,614.88
  6. Step 6: Final answer
    x = 16,093.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.