Home / 43,105.68-64,659.60-11,940.84

Finding the Fourth Proportional to 43,105.68, 64,659.60 and 11,940.84

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Solution

The fourth proportional to 43,105.68, 64,659.60 and 11,940.84 is: 17,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,105.68 : 64,659.60 = 11,940.84 : x
  2. Step 2: Convert to fraction form
    43,105.68/64,659.60 = 11,940.84/x
  3. Step 3: Cross multiply
    43,105.68x = 64,659.60 × 11,940.84
  4. Step 4: Simplify right side
    43,105.68x = 772,089,938.06
  5. Step 5: Solve for x
    x = 772,089,938.06/43,105.68
  6. Step 6: Final answer
    x = 17,911.56

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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.