Home / 13,350.63-20,029.59-3,991.08

Finding the Fourth Proportional to 13,350.63, 20,029.59 and 3,991.08

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Solution

The fourth proportional to 13,350.63, 20,029.59 and 3,991.08 is: 5,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.63 : 20,029.59 = 3,991.08 : x
  2. Step 2: Convert to fraction form
    13,350.63/20,029.59 = 3,991.08/x
  3. Step 3: Cross multiply
    13,350.63x = 20,029.59 × 3,991.08
  4. Step 4: Simplify right side
    13,350.63x = 79,939,696.06
  5. Step 5: Solve for x
    x = 79,939,696.06/13,350.63
  6. Step 6: Final answer
    x = 5,987.71

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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.