Home / 13,821.81-20,738.79-5,058.03

Finding the Fourth Proportional to 13,821.81, 20,738.79 and 5,058.03

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Solution

The fourth proportional to 13,821.81, 20,738.79 and 5,058.03 is: 7,589.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.81 : 20,738.79 = 5,058.03 : x
  2. Step 2: Convert to fraction form
    13,821.81/20,738.79 = 5,058.03/x
  3. Step 3: Cross multiply
    13,821.81x = 20,738.79 × 5,058.03
  4. Step 4: Simplify right side
    13,821.81x = 104,897,421.98
  5. Step 5: Solve for x
    x = 104,897,421.98/13,821.81
  6. Step 6: Final answer
    x = 7,589.27

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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.