Home / 29,145.20-43,728.60-11,627.60

Finding the Fourth Proportional to 29,145.20, 43,728.60 and 11,627.60

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Solution

The fourth proportional to 29,145.20, 43,728.60 and 11,627.60 is: 17,445.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,145.20 : 43,728.60 = 11,627.60 : x
  2. Step 2: Convert to fraction form
    29,145.20/43,728.60 = 11,627.60/x
  3. Step 3: Cross multiply
    29,145.20x = 43,728.60 × 11,627.60
  4. Step 4: Simplify right side
    29,145.20x = 508,458,669.36
  5. Step 5: Solve for x
    x = 508,458,669.36/29,145.20
  6. Step 6: Final answer
    x = 17,445.71

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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.