Home / 33,086.89-45,667.11-20,351.02

Finding the Fourth Proportional to 33,086.89, 45,667.11 and 20,351.02

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Solution

The fourth proportional to 33,086.89, 45,667.11 and 20,351.02 is: 28,088.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,086.89 : 45,667.11 = 20,351.02 : x
  2. Step 2: Convert to fraction form
    33,086.89/45,667.11 = 20,351.02/x
  3. Step 3: Cross multiply
    33,086.89x = 45,667.11 × 20,351.02
  4. Step 4: Simplify right side
    33,086.89x = 929,372,268.95
  5. Step 5: Solve for x
    x = 929,372,268.95/33,086.89
  6. Step 6: Final answer
    x = 28,088.84

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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.