Home / 38,669.24-57,984.30-18,918.20

Finding the Fourth Proportional to 38,669.24, 57,984.30 and 18,918.20

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Solution

The fourth proportional to 38,669.24, 57,984.30 and 18,918.20 is: 28,367.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,669.24 : 57,984.30 = 18,918.20 : x
  2. Step 2: Convert to fraction form
    38,669.24/57,984.30 = 18,918.20/x
  3. Step 3: Cross multiply
    38,669.24x = 57,984.30 × 18,918.20
  4. Step 4: Simplify right side
    38,669.24x = 1,096,958,584.26
  5. Step 5: Solve for x
    x = 1,096,958,584.26/38,669.24
  6. Step 6: Final answer
    x = 28,367.73

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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.