Home / 21,634.56-29,860.50-14,067.72

Finding the Fourth Proportional to 21,634.56, 29,860.50 and 14,067.72

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Solution

The fourth proportional to 21,634.56, 29,860.50 and 14,067.72 is: 19,416.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,634.56 : 29,860.50 = 14,067.72 : x
  2. Step 2: Convert to fraction form
    21,634.56/29,860.50 = 14,067.72/x
  3. Step 3: Cross multiply
    21,634.56x = 29,860.50 × 14,067.72
  4. Step 4: Simplify right side
    21,634.56x = 420,069,153.06
  5. Step 5: Solve for x
    x = 420,069,153.06/21,634.56
  6. Step 6: Final answer
    x = 19,416.58

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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.