Home / 21,158.13-29,198.58-11,597.83

Finding the Fourth Proportional to 21,158.13, 29,198.58 and 11,597.83

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Solution

The fourth proportional to 21,158.13, 29,198.58 and 11,597.83 is: 16,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,158.13 : 29,198.58 = 11,597.83 : x
  2. Step 2: Convert to fraction form
    21,158.13/29,198.58 = 11,597.83/x
  3. Step 3: Cross multiply
    21,158.13x = 29,198.58 × 11,597.83
  4. Step 4: Simplify right side
    21,158.13x = 338,639,963.10
  5. Step 5: Solve for x
    x = 338,639,963.10/21,158.13
  6. Step 6: Final answer
    x = 16,005.19

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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.