Home / 18,255.60-27,383.40-13,881.60

Finding the Fourth Proportional to 18,255.60, 27,383.40 and 13,881.60

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Solution

The fourth proportional to 18,255.60, 27,383.40 and 13,881.60 is: 20,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.60 : 27,383.40 = 13,881.60 : x
  2. Step 2: Convert to fraction form
    18,255.60/27,383.40 = 13,881.60/x
  3. Step 3: Cross multiply
    18,255.60x = 27,383.40 × 13,881.60
  4. Step 4: Simplify right side
    18,255.60x = 380,125,405.44
  5. Step 5: Solve for x
    x = 380,125,405.44/18,255.60
  6. Step 6: Final answer
    x = 20,822.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.