Home / 20,086.54-27,721.38-11,702.50

Finding the Fourth Proportional to 20,086.54, 27,721.38 and 11,702.50

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Solution

The fourth proportional to 20,086.54, 27,721.38 and 11,702.50 is: 16,150.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.54 : 27,721.38 = 11,702.50 : x
  2. Step 2: Convert to fraction form
    20,086.54/27,721.38 = 11,702.50/x
  3. Step 3: Cross multiply
    20,086.54x = 27,721.38 × 11,702.50
  4. Step 4: Simplify right side
    20,086.54x = 324,409,449.45
  5. Step 5: Solve for x
    x = 324,409,449.45/20,086.54
  6. Step 6: Final answer
    x = 16,150.59

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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.