Home / 20,281.29-27,986.27-11,896.17

Finding the Fourth Proportional to 20,281.29, 27,986.27 and 11,896.17

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Solution

The fourth proportional to 20,281.29, 27,986.27 and 11,896.17 is: 16,415.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,281.29 : 27,986.27 = 11,896.17 : x
  2. Step 2: Convert to fraction form
    20,281.29/27,986.27 = 11,896.17/x
  3. Step 3: Cross multiply
    20,281.29x = 27,986.27 × 11,896.17
  4. Step 4: Simplify right side
    20,281.29x = 332,929,366.11
  5. Step 5: Solve for x
    x = 332,929,366.11/20,281.29
  6. Step 6: Final answer
    x = 16,415.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.