Home / 29,659.78-44,496.80-12,129.60

Finding the Fourth Proportional to 29,659.78, 44,496.80 and 12,129.60

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Solution

The fourth proportional to 29,659.78, 44,496.80 and 12,129.60 is: 18,197.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,659.78 : 44,496.80 = 12,129.60 : x
  2. Step 2: Convert to fraction form
    29,659.78/44,496.80 = 12,129.60/x
  3. Step 3: Cross multiply
    29,659.78x = 44,496.80 × 12,129.60
  4. Step 4: Simplify right side
    29,659.78x = 539,728,385.28
  5. Step 5: Solve for x
    x = 539,728,385.28/29,659.78
  6. Step 6: Final answer
    x = 18,197.32

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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.