Home / 36,981.20-55,477.34-13,605.86

Finding the Fourth Proportional to 36,981.20, 55,477.34 and 13,605.86

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Solution

The fourth proportional to 36,981.20, 55,477.34 and 13,605.86 is: 20,410.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,981.20 : 55,477.34 = 13,605.86 : x
  2. Step 2: Convert to fraction form
    36,981.20/55,477.34 = 13,605.86/x
  3. Step 3: Cross multiply
    36,981.20x = 55,477.34 × 13,605.86
  4. Step 4: Simplify right side
    36,981.20x = 754,816,921.21
  5. Step 5: Solve for x
    x = 754,816,921.21/36,981.20
  6. Step 6: Final answer
    x = 20,410.83

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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.