Home / 20,829.06-28,733.34-14,112.39

Finding the Fourth Proportional to 20,829.06, 28,733.34 and 14,112.39

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Solution

The fourth proportional to 20,829.06, 28,733.34 and 14,112.39 is: 19,467.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829.06 : 28,733.34 = 14,112.39 : x
  2. Step 2: Convert to fraction form
    20,829.06/28,733.34 = 14,112.39/x
  3. Step 3: Cross multiply
    20,829.06x = 28,733.34 × 14,112.39
  4. Step 4: Simplify right side
    20,829.06x = 405,496,100.08
  5. Step 5: Solve for x
    x = 405,496,100.08/20,829.06
  6. Step 6: Final answer
    x = 19,467.81

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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.