Home / 18,132.38-27,145.74-13,473.05

Finding the Fourth Proportional to 18,132.38, 27,145.74 and 13,473.05

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Solution

The fourth proportional to 18,132.38, 27,145.74 and 13,473.05 is: 20,170.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.38 : 27,145.74 = 13,473.05 : x
  2. Step 2: Convert to fraction form
    18,132.38/27,145.74 = 13,473.05/x
  3. Step 3: Cross multiply
    18,132.38x = 27,145.74 × 13,473.05
  4. Step 4: Simplify right side
    18,132.38x = 365,735,776.58
  5. Step 5: Solve for x
    x = 365,735,776.58/18,132.38
  6. Step 6: Final answer
    x = 20,170.31

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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.