Home / 18,268.80-27,435.60-14,118.90

Finding the Fourth Proportional to 18,268.80, 27,435.60 and 14,118.90

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Solution

The fourth proportional to 18,268.80, 27,435.60 and 14,118.90 is: 21,203.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.80 : 27,435.60 = 14,118.90 : x
  2. Step 2: Convert to fraction form
    18,268.80/27,435.60 = 14,118.90/x
  3. Step 3: Cross multiply
    18,268.80x = 27,435.60 × 14,118.90
  4. Step 4: Simplify right side
    18,268.80x = 387,360,492.84
  5. Step 5: Solve for x
    x = 387,360,492.84/18,268.80
  6. Step 6: Final answer
    x = 21,203.39

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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.