Home / 27,377.73-37,736.82-21,398.85

Finding the Fourth Proportional to 27,377.73, 37,736.82 and 21,398.85

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Solution

The fourth proportional to 27,377.73, 37,736.82 and 21,398.85 is: 29,495.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,377.73 : 37,736.82 = 21,398.85 : x
  2. Step 2: Convert to fraction form
    27,377.73/37,736.82 = 21,398.85/x
  3. Step 3: Cross multiply
    27,377.73x = 37,736.82 × 21,398.85
  4. Step 4: Simplify right side
    27,377.73x = 807,524,550.66
  5. Step 5: Solve for x
    x = 807,524,550.66/27,377.73
  6. Step 6: Final answer
    x = 29,495.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.