Home / 20,201.50-27,880.23-11,825.02

Finding the Fourth Proportional to 20,201.50, 27,880.23 and 11,825.02

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Solution

The fourth proportional to 20,201.50, 27,880.23 and 11,825.02 is: 16,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.50 : 27,880.23 = 11,825.02 : x
  2. Step 2: Convert to fraction form
    20,201.50/27,880.23 = 11,825.02/x
  3. Step 3: Cross multiply
    20,201.50x = 27,880.23 × 11,825.02
  4. Step 4: Simplify right side
    20,201.50x = 329,684,277.35
  5. Step 5: Solve for x
    x = 329,684,277.35/20,201.50
  6. Step 6: Final answer
    x = 16,319.79

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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.