Home / 13,629.52-20,445.15-3,634.11

Finding the Fourth Proportional to 13,629.52, 20,445.15 and 3,634.11

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Solution

The fourth proportional to 13,629.52, 20,445.15 and 3,634.11 is: 5,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.52 : 20,445.15 = 3,634.11 : x
  2. Step 2: Convert to fraction form
    13,629.52/20,445.15 = 3,634.11/x
  3. Step 3: Cross multiply
    13,629.52x = 20,445.15 × 3,634.11
  4. Step 4: Simplify right side
    13,629.52x = 74,299,924.07
  5. Step 5: Solve for x
    x = 74,299,924.07/13,629.52
  6. Step 6: Final answer
    x = 5,451.40

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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.