Home / 13,988.25-20,982.58-3,600

Finding the Fourth Proportional to 13,988.25, 20,982.58 and 3,600

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Solution

The fourth proportional to 13,988.25, 20,982.58 and 3,600 is: 5,400.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.25 : 20,982.58 = 3,600 : x
  2. Step 2: Convert to fraction form
    13,988.25/20,982.58 = 3,600/x
  3. Step 3: Cross multiply
    13,988.25x = 20,982.58 × 3,600
  4. Step 4: Simplify right side
    13,988.25x = 75,537,279
  5. Step 5: Solve for x
    x = 75,537,279/13,988.25
  6. Step 6: Final answer
    x = 5,400.05

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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.