Home / 20,056.21-27,684.84-11,672.71

Finding the Fourth Proportional to 20,056.21, 27,684.84 and 11,672.71

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Solution

The fourth proportional to 20,056.21, 27,684.84 and 11,672.71 is: 16,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056.21 : 27,684.84 = 11,672.71 : x
  2. Step 2: Convert to fraction form
    20,056.21/27,684.84 = 11,672.71/x
  3. Step 3: Cross multiply
    20,056.21x = 27,684.84 × 11,672.71
  4. Step 4: Simplify right side
    20,056.21x = 323,157,108.72
  5. Step 5: Solve for x
    x = 323,157,108.72/20,056.21
  6. Step 6: Final answer
    x = 16,112.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.