Home / 20,150.40-30,209.52-6,996

Finding the Fourth Proportional to 20,150.40, 30,209.52 and 6,996

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Solution

The fourth proportional to 20,150.40, 30,209.52 and 6,996 is: 10,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.40 : 30,209.52 = 6,996 : x
  2. Step 2: Convert to fraction form
    20,150.40/30,209.52 = 6,996/x
  3. Step 3: Cross multiply
    20,150.40x = 30,209.52 × 6,996
  4. Step 4: Simplify right side
    20,150.40x = 211,345,801.92
  5. Step 5: Solve for x
    x = 211,345,801.92/20,150.40
  6. Step 6: Final answer
    x = 10,488.42

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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.