Home / 19,291.58-28,890.66-13,351.84

Finding the Fourth Proportional to 19,291.58, 28,890.66 and 13,351.84

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Solution

The fourth proportional to 19,291.58, 28,890.66 and 13,351.84 is: 19,995.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,291.58 : 28,890.66 = 13,351.84 : x
  2. Step 2: Convert to fraction form
    19,291.58/28,890.66 = 13,351.84/x
  3. Step 3: Cross multiply
    19,291.58x = 28,890.66 × 13,351.84
  4. Step 4: Simplify right side
    19,291.58x = 385,743,469.81
  5. Step 5: Solve for x
    x = 385,743,469.81/19,291.58
  6. Step 6: Final answer
    x = 19,995.43

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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.