Home / 21,273.36-31,911.51-7,227.66

Finding the Fourth Proportional to 21,273.36, 31,911.51 and 7,227.66

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Solution

The fourth proportional to 21,273.36, 31,911.51 and 7,227.66 is: 10,841.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.36 : 31,911.51 = 7,227.66 : x
  2. Step 2: Convert to fraction form
    21,273.36/31,911.51 = 7,227.66/x
  3. Step 3: Cross multiply
    21,273.36x = 31,911.51 × 7,227.66
  4. Step 4: Simplify right side
    21,273.36x = 230,645,544.37
  5. Step 5: Solve for x
    x = 230,645,544.37/21,273.36
  6. Step 6: Final answer
    x = 10,841.99

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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.