Home / 19,669.05-27,080.60-18,327.69

Finding the Fourth Proportional to 19,669.05, 27,080.60 and 18,327.69

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Solution

The fourth proportional to 19,669.05, 27,080.60 and 18,327.69 is: 25,233.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.05 : 27,080.60 = 18,327.69 : x
  2. Step 2: Convert to fraction form
    19,669.05/27,080.60 = 18,327.69/x
  3. Step 3: Cross multiply
    19,669.05x = 27,080.60 × 18,327.69
  4. Step 4: Simplify right side
    19,669.05x = 496,324,750.18
  5. Step 5: Solve for x
    x = 496,324,750.18/19,669.05
  6. Step 6: Final answer
    x = 25,233.79

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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.