Home / 21,023.22-29,011.92-11,591.76

Finding the Fourth Proportional to 21,023.22, 29,011.92 and 11,591.76

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Solution

The fourth proportional to 21,023.22, 29,011.92 and 11,591.76 is: 15,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,023.22 : 29,011.92 = 11,591.76 : x
  2. Step 2: Convert to fraction form
    21,023.22/29,011.92 = 11,591.76/x
  3. Step 3: Cross multiply
    21,023.22x = 29,011.92 × 11,591.76
  4. Step 4: Simplify right side
    21,023.22x = 336,299,213.78
  5. Step 5: Solve for x
    x = 336,299,213.78/21,023.22
  6. Step 6: Final answer
    x = 15,996.56

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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.