Home / 13,975.31-20,962.94-3,587.06

Finding the Fourth Proportional to 13,975.31, 20,962.94 and 3,587.06

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Solution

The fourth proportional to 13,975.31, 20,962.94 and 3,587.06 is: 5,380.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.31 : 20,962.94 = 3,587.06 : x
  2. Step 2: Convert to fraction form
    13,975.31/20,962.94 = 3,587.06/x
  3. Step 3: Cross multiply
    13,975.31x = 20,962.94 × 3,587.06
  4. Step 4: Simplify right side
    13,975.31x = 75,195,200.81
  5. Step 5: Solve for x
    x = 75,195,200.81/13,975.31
  6. Step 6: Final answer
    x = 5,380.58

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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.