Home / 39,578.40-54,618.08-21,674.52

Finding the Fourth Proportional to 39,578.40, 54,618.08 and 21,674.52

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Solution

The fourth proportional to 39,578.40, 54,618.08 and 21,674.52 is: 29,910.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,578.40 : 54,618.08 = 21,674.52 : x
  2. Step 2: Convert to fraction form
    39,578.40/54,618.08 = 21,674.52/x
  3. Step 3: Cross multiply
    39,578.40x = 54,618.08 × 21,674.52
  4. Step 4: Simplify right side
    39,578.40x = 1,183,820,558.95
  5. Step 5: Solve for x
    x = 1,183,820,558.95/39,578.40
  6. Step 6: Final answer
    x = 29,910.77

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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.