Home / 20,860.90-31,296.52-6,069.96

Finding the Fourth Proportional to 20,860.90, 31,296.52 and 6,069.96

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Solution

The fourth proportional to 20,860.90, 31,296.52 and 6,069.96 is: 9,106.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.90 : 31,296.52 = 6,069.96 : x
  2. Step 2: Convert to fraction form
    20,860.90/31,296.52 = 6,069.96/x
  3. Step 3: Cross multiply
    20,860.90x = 31,296.52 × 6,069.96
  4. Step 4: Simplify right side
    20,860.90x = 189,968,624.54
  5. Step 5: Solve for x
    x = 189,968,624.54/20,860.90
  6. Step 6: Final answer
    x = 9,106.44

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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.