Home / 21,072.74-31,604.25-7,926.44

Finding the Fourth Proportional to 21,072.74, 31,604.25 and 7,926.44

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Solution

The fourth proportional to 21,072.74, 31,604.25 and 7,926.44 is: 11,887.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,072.74 : 31,604.25 = 7,926.44 : x
  2. Step 2: Convert to fraction form
    21,072.74/31,604.25 = 7,926.44/x
  3. Step 3: Cross multiply
    21,072.74x = 31,604.25 × 7,926.44
  4. Step 4: Simplify right side
    21,072.74x = 250,509,191.37
  5. Step 5: Solve for x
    x = 250,509,191.37/21,072.74
  6. Step 6: Final answer
    x = 11,887.83

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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.