Home / 21,995.28-32,974.56-11,471.76

Finding the Fourth Proportional to 21,995.28, 32,974.56 and 11,471.76

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Solution

The fourth proportional to 21,995.28, 32,974.56 and 11,471.76 is: 17,198.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.28 : 32,974.56 = 11,471.76 : x
  2. Step 2: Convert to fraction form
    21,995.28/32,974.56 = 11,471.76/x
  3. Step 3: Cross multiply
    21,995.28x = 32,974.56 × 11,471.76
  4. Step 4: Simplify right side
    21,995.28x = 378,276,238.43
  5. Step 5: Solve for x
    x = 378,276,238.43/21,995.28
  6. Step 6: Final answer
    x = 17,198.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.