Home / 20,213.60-27,894.36-11,261.08

Finding the Fourth Proportional to 20,213.60, 27,894.36 and 11,261.08

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Solution

The fourth proportional to 20,213.60, 27,894.36 and 11,261.08 is: 15,540.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.60 : 27,894.36 = 11,261.08 : x
  2. Step 2: Convert to fraction form
    20,213.60/27,894.36 = 11,261.08/x
  3. Step 3: Cross multiply
    20,213.60x = 27,894.36 × 11,261.08
  4. Step 4: Simplify right side
    20,213.60x = 314,120,619.51
  5. Step 5: Solve for x
    x = 314,120,619.51/20,213.60
  6. Step 6: Final answer
    x = 15,540.06

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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.