Home / 21,318.26-29,419.39-11,758.52

Finding the Fourth Proportional to 21,318.26, 29,419.39 and 11,758.52

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Solution

The fourth proportional to 21,318.26, 29,419.39 and 11,758.52 is: 16,226.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318.26 : 29,419.39 = 11,758.52 : x
  2. Step 2: Convert to fraction form
    21,318.26/29,419.39 = 11,758.52/x
  3. Step 3: Cross multiply
    21,318.26x = 29,419.39 × 11,758.52
  4. Step 4: Simplify right side
    21,318.26x = 345,928,338.61
  5. Step 5: Solve for x
    x = 345,928,338.61/21,318.26
  6. Step 6: Final answer
    x = 16,226.86

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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.