Home / 20,188.56-27,860.36-11,236.44

Finding the Fourth Proportional to 20,188.56, 27,860.36 and 11,236.44

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Solution

The fourth proportional to 20,188.56, 27,860.36 and 11,236.44 is: 15,506.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188.56 : 27,860.36 = 11,236.44 : x
  2. Step 2: Convert to fraction form
    20,188.56/27,860.36 = 11,236.44/x
  3. Step 3: Cross multiply
    20,188.56x = 27,860.36 × 11,236.44
  4. Step 4: Simplify right side
    20,188.56x = 313,051,263.52
  5. Step 5: Solve for x
    x = 313,051,263.52/20,188.56
  6. Step 6: Final answer
    x = 15,506.37

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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.