Home / 20,670.69-30,956.76-11,296.65

Finding the Fourth Proportional to 20,670.69, 30,956.76 and 11,296.65

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Solution

The fourth proportional to 20,670.69, 30,956.76 and 11,296.65 is: 16,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.69 : 30,956.76 = 11,296.65 : x
  2. Step 2: Convert to fraction form
    20,670.69/30,956.76 = 11,296.65/x
  3. Step 3: Cross multiply
    20,670.69x = 30,956.76 × 11,296.65
  4. Step 4: Simplify right side
    20,670.69x = 349,707,682.85
  5. Step 5: Solve for x
    x = 349,707,682.85/20,670.69
  6. Step 6: Final answer
    x = 16,918.05

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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.