Home / 20,283.55-27,992.82-11,672.38

Finding the Fourth Proportional to 20,283.55, 27,992.82 and 11,672.38

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Solution

The fourth proportional to 20,283.55, 27,992.82 and 11,672.38 is: 16,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.55 : 27,992.82 = 11,672.38 : x
  2. Step 2: Convert to fraction form
    20,283.55/27,992.82 = 11,672.38/x
  3. Step 3: Cross multiply
    20,283.55x = 27,992.82 × 11,672.38
  4. Step 4: Simplify right side
    20,283.55x = 326,742,733.86
  5. Step 5: Solve for x
    x = 326,742,733.86/20,283.55
  6. Step 6: Final answer
    x = 16,108.76

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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.