Home / 20,811.66-31,178.61-16,184.94

Finding the Fourth Proportional to 20,811.66, 31,178.61 and 16,184.94

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Solution

The fourth proportional to 20,811.66, 31,178.61 and 16,184.94 is: 24,247.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811.66 : 31,178.61 = 16,184.94 : x
  2. Step 2: Convert to fraction form
    20,811.66/31,178.61 = 16,184.94/x
  3. Step 3: Cross multiply
    20,811.66x = 31,178.61 × 16,184.94
  4. Step 4: Simplify right side
    20,811.66x = 504,623,932.13
  5. Step 5: Solve for x
    x = 504,623,932.13/20,811.66
  6. Step 6: Final answer
    x = 24,247.17

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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.