Home / 27,719.69-41,601.40-12,920.99

Finding the Fourth Proportional to 27,719.69, 41,601.40 and 12,920.99

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Solution

The fourth proportional to 27,719.69, 41,601.40 and 12,920.99 is: 19,391.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,719.69 : 41,601.40 = 12,920.99 : x
  2. Step 2: Convert to fraction form
    27,719.69/41,601.40 = 12,920.99/x
  3. Step 3: Cross multiply
    27,719.69x = 41,601.40 × 12,920.99
  4. Step 4: Simplify right side
    27,719.69x = 537,531,033.08
  5. Step 5: Solve for x
    x = 537,531,033.08/27,719.69
  6. Step 6: Final answer
    x = 19,391.67

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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.