Home / 39,299.48-54,234.41-21,394.78

Finding the Fourth Proportional to 39,299.48, 54,234.41 and 21,394.78

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Solution

The fourth proportional to 39,299.48, 54,234.41 and 21,394.78 is: 29,525.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,299.48 : 54,234.41 = 21,394.78 : x
  2. Step 2: Convert to fraction form
    39,299.48/54,234.41 = 21,394.78/x
  3. Step 3: Cross multiply
    39,299.48x = 54,234.41 × 21,394.78
  4. Step 4: Simplify right side
    39,299.48x = 1,160,333,453.23
  5. Step 5: Solve for x
    x = 1,160,333,453.23/39,299.48
  6. Step 6: Final answer
    x = 29,525.42

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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.