Home / 30,270.27-45,393.89-13,842.75

Finding the Fourth Proportional to 30,270.27, 45,393.89 and 13,842.75

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Solution

The fourth proportional to 30,270.27, 45,393.89 and 13,842.75 is: 20,758.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,270.27 : 45,393.89 = 13,842.75 : x
  2. Step 2: Convert to fraction form
    30,270.27/45,393.89 = 13,842.75/x
  3. Step 3: Cross multiply
    30,270.27x = 45,393.89 × 13,842.75
  4. Step 4: Simplify right side
    30,270.27x = 628,376,201.58
  5. Step 5: Solve for x
    x = 628,376,201.58/30,270.27
  6. Step 6: Final answer
    x = 20,758.86

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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.