Home / 13,848.21-20,765.84-3,985.25

Finding the Fourth Proportional to 13,848.21, 20,765.84 and 3,985.25

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Solution

The fourth proportional to 13,848.21, 20,765.84 and 3,985.25 is: 5,976.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.21 : 20,765.84 = 3,985.25 : x
  2. Step 2: Convert to fraction form
    13,848.21/20,765.84 = 3,985.25/x
  3. Step 3: Cross multiply
    13,848.21x = 20,765.84 × 3,985.25
  4. Step 4: Simplify right side
    13,848.21x = 82,756,940.10
  5. Step 5: Solve for x
    x = 82,756,940.10/13,848.21
  6. Step 6: Final answer
    x = 5,976.00

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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.