Home / 39,356.31-54,310.11-21,450.93

Finding the Fourth Proportional to 39,356.31, 54,310.11 and 21,450.93

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Solution

The fourth proportional to 39,356.31, 54,310.11 and 21,450.93 is: 29,601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,356.31 : 54,310.11 = 21,450.93 : x
  2. Step 2: Convert to fraction form
    39,356.31/54,310.11 = 21,450.93/x
  3. Step 3: Cross multiply
    39,356.31x = 54,310.11 × 21,450.93
  4. Step 4: Simplify right side
    39,356.31x = 1,165,002,367.90
  5. Step 5: Solve for x
    x = 1,165,002,367.90/39,356.31
  6. Step 6: Final answer
    x = 29,601.41

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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.