Home / 21,029.55-31,544.10-6,238.61

Finding the Fourth Proportional to 21,029.55, 31,544.10 and 6,238.61

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Solution

The fourth proportional to 21,029.55, 31,544.10 and 6,238.61 is: 9,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.55 : 31,544.10 = 6,238.61 : x
  2. Step 2: Convert to fraction form
    21,029.55/31,544.10 = 6,238.61/x
  3. Step 3: Cross multiply
    21,029.55x = 31,544.10 × 6,238.61
  4. Step 4: Simplify right side
    21,029.55x = 196,791,179.98
  5. Step 5: Solve for x
    x = 196,791,179.98/21,029.55
  6. Step 6: Final answer
    x = 9,357.84

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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.