Home / 20,150.07-27,807.76-11,197.95

Finding the Fourth Proportional to 20,150.07, 27,807.76 and 11,197.95

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Solution

The fourth proportional to 20,150.07, 27,807.76 and 11,197.95 is: 15,453.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.07 : 27,807.76 = 11,197.95 : x
  2. Step 2: Convert to fraction form
    20,150.07/27,807.76 = 11,197.95/x
  3. Step 3: Cross multiply
    20,150.07x = 27,807.76 × 11,197.95
  4. Step 4: Simplify right side
    20,150.07x = 311,389,809.05
  5. Step 5: Solve for x
    x = 311,389,809.05/20,150.07
  6. Step 6: Final answer
    x = 15,453.54

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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.