Home / 20,832.36-28,739.52-12,444

Finding the Fourth Proportional to 20,832.36, 28,739.52 and 12,444

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Solution

The fourth proportional to 20,832.36, 28,739.52 and 12,444 is: 17,167.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.36 : 28,739.52 = 12,444 : x
  2. Step 2: Convert to fraction form
    20,832.36/28,739.52 = 12,444/x
  3. Step 3: Cross multiply
    20,832.36x = 28,739.52 × 12,444
  4. Step 4: Simplify right side
    20,832.36x = 357,634,586.88
  5. Step 5: Solve for x
    x = 357,634,586.88/20,832.36
  6. Step 6: Final answer
    x = 17,167.26

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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.