Home / 21,049.05-31,578.42-6,257.64

Finding the Fourth Proportional to 21,049.05, 31,578.42 and 6,257.64

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Solution

The fourth proportional to 21,049.05, 31,578.42 and 6,257.64 is: 9,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.05 : 31,578.42 = 6,257.64 : x
  2. Step 2: Convert to fraction form
    21,049.05/31,578.42 = 6,257.64/x
  3. Step 3: Cross multiply
    21,049.05x = 31,578.42 × 6,257.64
  4. Step 4: Simplify right side
    21,049.05x = 197,606,384.13
  5. Step 5: Solve for x
    x = 197,606,384.13/21,049.05
  6. Step 6: Final answer
    x = 9,387.90

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1.5x scale

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.