Home / 21,682.58-29,926.96-14,115.73

Finding the Fourth Proportional to 21,682.58, 29,926.96 and 14,115.73

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Solution

The fourth proportional to 21,682.58, 29,926.96 and 14,115.73 is: 19,482.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682.58 : 29,926.96 = 14,115.73 : x
  2. Step 2: Convert to fraction form
    21,682.58/29,926.96 = 14,115.73/x
  3. Step 3: Cross multiply
    21,682.58x = 29,926.96 × 14,115.73
  4. Step 4: Simplify right side
    21,682.58x = 422,440,776.97
  5. Step 5: Solve for x
    x = 422,440,776.97/21,682.58
  6. Step 6: Final answer
    x = 19,482.95

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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.