Home / 20,051.88-27,671.20-11,098.86

Finding the Fourth Proportional to 20,051.88, 27,671.20 and 11,098.86

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Solution

The fourth proportional to 20,051.88, 27,671.20 and 11,098.86 is: 15,316.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051.88 : 27,671.20 = 11,098.86 : x
  2. Step 2: Convert to fraction form
    20,051.88/27,671.20 = 11,098.86/x
  3. Step 3: Cross multiply
    20,051.88x = 27,671.20 × 11,098.86
  4. Step 4: Simplify right side
    20,051.88x = 307,118,747.08
  5. Step 5: Solve for x
    x = 307,118,747.08/20,051.88
  6. Step 6: Final answer
    x = 15,316.21

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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.