Home / 38,821.85-58,245.08-13,861.36

Finding the Fourth Proportional to 38,821.85, 58,245.08 and 13,861.36

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Solution

The fourth proportional to 38,821.85, 58,245.08 and 13,861.36 is: 20,796.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,821.85 : 58,245.08 = 13,861.36 : x
  2. Step 2: Convert to fraction form
    38,821.85/58,245.08 = 13,861.36/x
  3. Step 3: Cross multiply
    38,821.85x = 58,245.08 × 13,861.36
  4. Step 4: Simplify right side
    38,821.85x = 807,356,022.11
  5. Step 5: Solve for x
    x = 807,356,022.11/38,821.85
  6. Step 6: Final answer
    x = 20,796.43

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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.