Home / 20,227.56-27,896.58-13,151.40

Finding the Fourth Proportional to 20,227.56, 27,896.58 and 13,151.40

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Solution

The fourth proportional to 20,227.56, 27,896.58 and 13,151.40 is: 18,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.56 : 27,896.58 = 13,151.40 : x
  2. Step 2: Convert to fraction form
    20,227.56/27,896.58 = 13,151.40/x
  3. Step 3: Cross multiply
    20,227.56x = 27,896.58 × 13,151.40
  4. Step 4: Simplify right side
    20,227.56x = 366,879,082.21
  5. Step 5: Solve for x
    x = 366,879,082.21/20,227.56
  6. Step 6: Final answer
    x = 18,137.58

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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.