Home / 20,148.47-27,804.91-11,195.76

Finding the Fourth Proportional to 20,148.47, 27,804.91 and 11,195.76

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Solution

The fourth proportional to 20,148.47, 27,804.91 and 11,195.76 is: 15,450.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.47 : 27,804.91 = 11,195.76 : x
  2. Step 2: Convert to fraction form
    20,148.47/27,804.91 = 11,195.76/x
  3. Step 3: Cross multiply
    20,148.47x = 27,804.91 × 11,195.76
  4. Step 4: Simplify right side
    20,148.47x = 311,297,099.18
  5. Step 5: Solve for x
    x = 311,297,099.18/20,148.47
  6. Step 6: Final answer
    x = 15,450.16

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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.