Home / 21,425.66-32,139.41-6,634.88

Finding the Fourth Proportional to 21,425.66, 32,139.41 and 6,634.88

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Solution

The fourth proportional to 21,425.66, 32,139.41 and 6,634.88 is: 9,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.66 : 32,139.41 = 6,634.88 : x
  2. Step 2: Convert to fraction form
    21,425.66/32,139.41 = 6,634.88/x
  3. Step 3: Cross multiply
    21,425.66x = 32,139.41 × 6,634.88
  4. Step 4: Simplify right side
    21,425.66x = 213,240,934.75
  5. Step 5: Solve for x
    x = 213,240,934.75/21,425.66
  6. Step 6: Final answer
    x = 9,952.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.