Home / 18,272.80-27,441.60-14,122.90

Finding the Fourth Proportional to 18,272.80, 27,441.60 and 14,122.90

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Solution

The fourth proportional to 18,272.80, 27,441.60 and 14,122.90 is: 21,209.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.80 : 27,441.60 = 14,122.90 : x
  2. Step 2: Convert to fraction form
    18,272.80/27,441.60 = 14,122.90/x
  3. Step 3: Cross multiply
    18,272.80x = 27,441.60 × 14,122.90
  4. Step 4: Simplify right side
    18,272.80x = 387,554,972.64
  5. Step 5: Solve for x
    x = 387,554,972.64/18,272.80
  6. Step 6: Final answer
    x = 21,209.39

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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.