Home / 20,743.88-28,627.56-11,672.08

Finding the Fourth Proportional to 20,743.88, 28,627.56 and 11,672.08

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Solution

The fourth proportional to 20,743.88, 28,627.56 and 11,672.08 is: 16,108.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.88 : 28,627.56 = 11,672.08 : x
  2. Step 2: Convert to fraction form
    20,743.88/28,627.56 = 11,672.08/x
  3. Step 3: Cross multiply
    20,743.88x = 28,627.56 × 11,672.08
  4. Step 4: Simplify right side
    20,743.88x = 334,143,098.96
  5. Step 5: Solve for x
    x = 334,143,098.96/20,743.88
  6. Step 6: Final answer
    x = 16,108.04

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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.