Home / 36,912.57-55,376.14-13,539.21

Finding the Fourth Proportional to 36,912.57, 55,376.14 and 13,539.21

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Solution

The fourth proportional to 36,912.57, 55,376.14 and 13,539.21 is: 20,311.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,912.57 : 55,376.14 = 13,539.21 : x
  2. Step 2: Convert to fraction form
    36,912.57/55,376.14 = 13,539.21/x
  3. Step 3: Cross multiply
    36,912.57x = 55,376.14 × 13,539.21
  4. Step 4: Simplify right side
    36,912.57x = 749,749,188.45
  5. Step 5: Solve for x
    x = 749,749,188.45/36,912.57
  6. Step 6: Final answer
    x = 20,311.49

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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.