Home / 13,801.11-20,695.43-3,938.04

Finding the Fourth Proportional to 13,801.11, 20,695.43 and 3,938.04

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Solution

The fourth proportional to 13,801.11, 20,695.43 and 3,938.04 is: 5,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.11 : 20,695.43 = 3,938.04 : x
  2. Step 2: Convert to fraction form
    13,801.11/20,695.43 = 3,938.04/x
  3. Step 3: Cross multiply
    13,801.11x = 20,695.43 × 3,938.04
  4. Step 4: Simplify right side
    13,801.11x = 81,499,411.47
  5. Step 5: Solve for x
    x = 81,499,411.47/13,801.11
  6. Step 6: Final answer
    x = 5,905.28

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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.