Home / 30,669.44-42,321.73-17,242.78

Finding the Fourth Proportional to 30,669.44, 42,321.73 and 17,242.78

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Solution

The fourth proportional to 30,669.44, 42,321.73 and 17,242.78 is: 23,793.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,669.44 : 42,321.73 = 17,242.78 : x
  2. Step 2: Convert to fraction form
    30,669.44/42,321.73 = 17,242.78/x
  3. Step 3: Cross multiply
    30,669.44x = 42,321.73 × 17,242.78
  4. Step 4: Simplify right side
    30,669.44x = 729,744,242.38
  5. Step 5: Solve for x
    x = 729,744,242.38/30,669.44
  6. Step 6: Final answer
    x = 23,793.86

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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.