Home / 20,131.24-27,784.42-11,746.12

Finding the Fourth Proportional to 20,131.24, 27,784.42 and 11,746.12

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Solution

The fourth proportional to 20,131.24, 27,784.42 and 11,746.12 is: 16,211.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.24 : 27,784.42 = 11,746.12 : x
  2. Step 2: Convert to fraction form
    20,131.24/27,784.42 = 11,746.12/x
  3. Step 3: Cross multiply
    20,131.24x = 27,784.42 × 11,746.12
  4. Step 4: Simplify right side
    20,131.24x = 326,359,131.45
  5. Step 5: Solve for x
    x = 326,359,131.45/20,131.24
  6. Step 6: Final answer
    x = 16,211.58

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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.