Home / 21,167.52-29,211.20-11,735.88

Finding the Fourth Proportional to 21,167.52, 29,211.20 and 11,735.88

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Solution

The fourth proportional to 21,167.52, 29,211.20 and 11,735.88 is: 16,195.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.52 : 29,211.20 = 11,735.88 : x
  2. Step 2: Convert to fraction form
    21,167.52/29,211.20 = 11,735.88/x
  3. Step 3: Cross multiply
    21,167.52x = 29,211.20 × 11,735.88
  4. Step 4: Simplify right side
    21,167.52x = 342,819,137.86
  5. Step 5: Solve for x
    x = 342,819,137.86/21,167.52
  6. Step 6: Final answer
    x = 16,195.53

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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.