Home / 18,628.54-27,961.17-13,684.30

Finding the Fourth Proportional to 18,628.54, 27,961.17 and 13,684.30

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Solution

The fourth proportional to 18,628.54, 27,961.17 and 13,684.30 is: 20,539.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.54 : 27,961.17 = 13,684.30 : x
  2. Step 2: Convert to fraction form
    18,628.54/27,961.17 = 13,684.30/x
  3. Step 3: Cross multiply
    18,628.54x = 27,961.17 × 13,684.30
  4. Step 4: Simplify right side
    18,628.54x = 382,629,038.63
  5. Step 5: Solve for x
    x = 382,629,038.63/18,628.54
  6. Step 6: Final answer
    x = 20,539.94

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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.