Home / 20,166.76-27,828.39-11,214.10

Finding the Fourth Proportional to 20,166.76, 27,828.39 and 11,214.10

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Solution

The fourth proportional to 20,166.76, 27,828.39 and 11,214.10 is: 15,474.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.76 : 27,828.39 = 11,214.10 : x
  2. Step 2: Convert to fraction form
    20,166.76/27,828.39 = 11,214.10/x
  3. Step 3: Cross multiply
    20,166.76x = 27,828.39 × 11,214.10
  4. Step 4: Simplify right side
    20,166.76x = 312,070,348.30
  5. Step 5: Solve for x
    x = 312,070,348.30/20,166.76
  6. Step 6: Final answer
    x = 15,474.49

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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.