Home / 39,356.75-54,310.73-21,451.38

Finding the Fourth Proportional to 39,356.75, 54,310.73 and 21,451.38

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Solution

The fourth proportional to 39,356.75, 54,310.73 and 21,451.38 is: 29,602.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,356.75 : 54,310.73 = 21,451.38 : x
  2. Step 2: Convert to fraction form
    39,356.75/54,310.73 = 21,451.38/x
  3. Step 3: Cross multiply
    39,356.75x = 54,310.73 × 21,451.38
  4. Step 4: Simplify right side
    39,356.75x = 1,165,040,000.05
  5. Step 5: Solve for x
    x = 1,165,040,000.05/39,356.75
  6. Step 6: Final answer
    x = 29,602.04

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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.