Home / 21,614.62-29,826.39-12,185.50

Finding the Fourth Proportional to 21,614.62, 29,826.39 and 12,185.50

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Solution

The fourth proportional to 21,614.62, 29,826.39 and 12,185.50 is: 16,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,614.62 : 29,826.39 = 12,185.50 : x
  2. Step 2: Convert to fraction form
    21,614.62/29,826.39 = 12,185.50/x
  3. Step 3: Cross multiply
    21,614.62x = 29,826.39 × 12,185.50
  4. Step 4: Simplify right side
    21,614.62x = 363,449,475.35
  5. Step 5: Solve for x
    x = 363,449,475.35/21,614.62
  6. Step 6: Final answer
    x = 16,814.98

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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.