Home / 20,760.14-31,164.88-16,380.74

Finding the Fourth Proportional to 20,760.14, 31,164.88 and 16,380.74

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Solution

The fourth proportional to 20,760.14, 31,164.88 and 16,380.74 is: 24,590.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760.14 : 31,164.88 = 16,380.74 : x
  2. Step 2: Convert to fraction form
    20,760.14/31,164.88 = 16,380.74/x
  3. Step 3: Cross multiply
    20,760.14x = 31,164.88 × 16,380.74
  4. Step 4: Simplify right side
    20,760.14x = 510,503,796.41
  5. Step 5: Solve for x
    x = 510,503,796.41/20,760.14
  6. Step 6: Final answer
    x = 24,590.58

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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.