Home / 20,166.90-27,827.70-11,212.62

Finding the Fourth Proportional to 20,166.90, 27,827.70 and 11,212.62

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Solution

The fourth proportional to 20,166.90, 27,827.70 and 11,212.62 is: 15,471.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.90 : 27,827.70 = 11,212.62 : x
  2. Step 2: Convert to fraction form
    20,166.90/27,827.70 = 11,212.62/x
  3. Step 3: Cross multiply
    20,166.90x = 27,827.70 × 11,212.62
  4. Step 4: Simplify right side
    20,166.90x = 312,021,425.57
  5. Step 5: Solve for x
    x = 312,021,425.57/20,166.90
  6. Step 6: Final answer
    x = 15,471.96

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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.