Home / 36,143.89-54,231.34-13,972.83

Finding the Fourth Proportional to 36,143.89, 54,231.34 and 13,972.83

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Solution

The fourth proportional to 36,143.89, 54,231.34 and 13,972.83 is: 20,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,143.89 : 54,231.34 = 13,972.83 : x
  2. Step 2: Convert to fraction form
    36,143.89/54,231.34 = 13,972.83/x
  3. Step 3: Cross multiply
    36,143.89x = 54,231.34 × 13,972.83
  4. Step 4: Simplify right side
    36,143.89x = 757,765,462.93
  5. Step 5: Solve for x
    x = 757,765,462.93/36,143.89
  6. Step 6: Final answer
    x = 20,965.25

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Double scale
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Similar ratio
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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.