Home / 36,130.80-54,182.74-12,431.73

Finding the Fourth Proportional to 36,130.80, 54,182.74 and 12,431.73

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Solution

The fourth proportional to 36,130.80, 54,182.74 and 12,431.73 is: 18,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,130.80 : 54,182.74 = 12,431.73 : x
  2. Step 2: Convert to fraction form
    36,130.80/54,182.74 = 12,431.73/x
  3. Step 3: Cross multiply
    36,130.80x = 54,182.74 × 12,431.73
  4. Step 4: Simplify right side
    36,130.80x = 673,584,861.27
  5. Step 5: Solve for x
    x = 673,584,861.27/36,130.80
  6. Step 6: Final answer
    x = 18,642.96

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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.