Home / 18,032.10-27,000.82-12,738.48

Finding the Fourth Proportional to 18,032.10, 27,000.82 and 12,738.48

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Solution

The fourth proportional to 18,032.10, 27,000.82 and 12,738.48 is: 19,074.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,032.10 : 27,000.82 = 12,738.48 : x
  2. Step 2: Convert to fraction form
    18,032.10/27,000.82 = 12,738.48/x
  3. Step 3: Cross multiply
    18,032.10x = 27,000.82 × 12,738.48
  4. Step 4: Simplify right side
    18,032.10x = 343,949,405.55
  5. Step 5: Solve for x
    x = 343,949,405.55/18,032.10
  6. Step 6: Final answer
    x = 19,074.28

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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.