Home / 17,690.20-24,422.55-11,729.91

Finding the Fourth Proportional to 17,690.20, 24,422.55 and 11,729.91

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Solution

The fourth proportional to 17,690.20, 24,422.55 and 11,729.91 is: 16,193.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,690.20 : 24,422.55 = 11,729.91 : x
  2. Step 2: Convert to fraction form
    17,690.20/24,422.55 = 11,729.91/x
  3. Step 3: Cross multiply
    17,690.20x = 24,422.55 × 11,729.91
  4. Step 4: Simplify right side
    17,690.20x = 286,474,361.07
  5. Step 5: Solve for x
    x = 286,474,361.07/17,690.20
  6. Step 6: Final answer
    x = 16,193.96

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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.