Home / 21,154.66-29,194.61-11,723.02

Finding the Fourth Proportional to 21,154.66, 29,194.61 and 11,723.02

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Solution

The fourth proportional to 21,154.66, 29,194.61 and 11,723.02 is: 16,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154.66 : 29,194.61 = 11,723.02 : x
  2. Step 2: Convert to fraction form
    21,154.66/29,194.61 = 11,723.02/x
  3. Step 3: Cross multiply
    21,154.66x = 29,194.61 × 11,723.02
  4. Step 4: Simplify right side
    21,154.66x = 342,248,865.32
  5. Step 5: Solve for x
    x = 342,248,865.32/21,154.66
  6. Step 6: Final answer
    x = 16,178.42

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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.