Home / 20,268.20-27,970.32-11,770.88

Finding the Fourth Proportional to 20,268.20, 27,970.32 and 11,770.88

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Solution

The fourth proportional to 20,268.20, 27,970.32 and 11,770.88 is: 16,243.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268.20 : 27,970.32 = 11,770.88 : x
  2. Step 2: Convert to fraction form
    20,268.20/27,970.32 = 11,770.88/x
  3. Step 3: Cross multiply
    20,268.20x = 27,970.32 × 11,770.88
  4. Step 4: Simplify right side
    20,268.20x = 329,235,280.28
  5. Step 5: Solve for x
    x = 329,235,280.28/20,268.20
  6. Step 6: Final answer
    x = 16,243.93

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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.