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Finding the Fourth Proportional to 36,687.86, 55,040.19 and 13,314.30

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Solution

The fourth proportional to 36,687.86, 55,040.19 and 13,314.30 is: 19,974.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,687.86 : 55,040.19 = 13,314.30 : x
  2. Step 2: Convert to fraction form
    36,687.86/55,040.19 = 13,314.30/x
  3. Step 3: Cross multiply
    36,687.86x = 55,040.19 × 13,314.30
  4. Step 4: Simplify right side
    36,687.86x = 732,821,601.72
  5. Step 5: Solve for x
    x = 732,821,601.72/36,687.86
  6. Step 6: Final answer
    x = 19,974.50

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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.