Home / 20,148.28-27,804.52-11,195.76

Finding the Fourth Proportional to 20,148.28, 27,804.52 and 11,195.76

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Solution

The fourth proportional to 20,148.28, 27,804.52 and 11,195.76 is: 15,450.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.28 : 27,804.52 = 11,195.76 : x
  2. Step 2: Convert to fraction form
    20,148.28/27,804.52 = 11,195.76/x
  3. Step 3: Cross multiply
    20,148.28x = 27,804.52 × 11,195.76
  4. Step 4: Simplify right side
    20,148.28x = 311,292,732.84
  5. Step 5: Solve for x
    x = 311,292,732.84/20,148.28
  6. Step 6: Final answer
    x = 15,450.09

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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.