Home / 20,340.27-28,071.14-11,845.04

Finding the Fourth Proportional to 20,340.27, 28,071.14 and 11,845.04

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Solution

The fourth proportional to 20,340.27, 28,071.14 and 11,845.04 is: 16,347.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340.27 : 28,071.14 = 11,845.04 : x
  2. Step 2: Convert to fraction form
    20,340.27/28,071.14 = 11,845.04/x
  3. Step 3: Cross multiply
    20,340.27x = 28,071.14 × 11,845.04
  4. Step 4: Simplify right side
    20,340.27x = 332,503,576.56
  5. Step 5: Solve for x
    x = 332,503,576.56/20,340.27
  6. Step 6: Final answer
    x = 16,347.06

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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.