Home / 21,156.24-29,195.88-11,724.56

Finding the Fourth Proportional to 21,156.24, 29,195.88 and 11,724.56

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Solution

The fourth proportional to 21,156.24, 29,195.88 and 11,724.56 is: 16,180.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,156.24 : 29,195.88 = 11,724.56 : x
  2. Step 2: Convert to fraction form
    21,156.24/29,195.88 = 11,724.56/x
  3. Step 3: Cross multiply
    21,156.24x = 29,195.88 × 11,724.56
  4. Step 4: Simplify right side
    21,156.24x = 342,308,846.81
  5. Step 5: Solve for x
    x = 342,308,846.81/21,156.24
  6. Step 6: Final answer
    x = 16,180.04

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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.