Home / 29,112.88-43,632.80-12,453.34

Finding the Fourth Proportional to 29,112.88, 43,632.80 and 12,453.34

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Solution

The fourth proportional to 29,112.88, 43,632.80 and 12,453.34 is: 18,664.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,112.88 : 43,632.80 = 12,453.34 : x
  2. Step 2: Convert to fraction form
    29,112.88/43,632.80 = 12,453.34/x
  3. Step 3: Cross multiply
    29,112.88x = 43,632.80 × 12,453.34
  4. Step 4: Simplify right side
    29,112.88x = 543,374,093.55
  5. Step 5: Solve for x
    x = 543,374,093.55/29,112.88
  6. Step 6: Final answer
    x = 18,664.39

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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.