Home / 20,187.49-27,858.52-11,234.84

Finding the Fourth Proportional to 20,187.49, 27,858.52 and 11,234.84

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Solution

The fourth proportional to 20,187.49, 27,858.52 and 11,234.84 is: 15,503.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.49 : 27,858.52 = 11,234.84 : x
  2. Step 2: Convert to fraction form
    20,187.49/27,858.52 = 11,234.84/x
  3. Step 3: Cross multiply
    20,187.49x = 27,858.52 × 11,234.84
  4. Step 4: Simplify right side
    20,187.49x = 312,986,014.84
  5. Step 5: Solve for x
    x = 312,986,014.84/20,187.49
  6. Step 6: Final answer
    x = 15,503.96

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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.