Home / 18,120.32-27,206.44-13,454.72

Finding the Fourth Proportional to 18,120.32, 27,206.44 and 13,454.72

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Solution

The fourth proportional to 18,120.32, 27,206.44 and 13,454.72 is: 20,201.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.32 : 27,206.44 = 13,454.72 : x
  2. Step 2: Convert to fraction form
    18,120.32/27,206.44 = 13,454.72/x
  3. Step 3: Cross multiply
    18,120.32x = 27,206.44 × 13,454.72
  4. Step 4: Simplify right side
    18,120.32x = 366,055,032.40
  5. Step 5: Solve for x
    x = 366,055,032.40/18,120.32
  6. Step 6: Final answer
    x = 20,201.36

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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.