Home / 20,815.66-31,184.61-16,188.94

Finding the Fourth Proportional to 20,815.66, 31,184.61 and 16,188.94

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Solution

The fourth proportional to 20,815.66, 31,184.61 and 16,188.94 is: 24,253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,815.66 : 31,184.61 = 16,188.94 : x
  2. Step 2: Convert to fraction form
    20,815.66/31,184.61 = 16,188.94/x
  3. Step 3: Cross multiply
    20,815.66x = 31,184.61 × 16,188.94
  4. Step 4: Simplify right side
    20,815.66x = 504,845,780.21
  5. Step 5: Solve for x
    x = 504,845,780.21/20,815.66
  6. Step 6: Final answer
    x = 24,253.17

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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.