Home / 39,450.31-54,441.86-21,545.84

Finding the Fourth Proportional to 39,450.31, 54,441.86 and 21,545.84

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Solution

The fourth proportional to 39,450.31, 54,441.86 and 21,545.84 is: 29,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,450.31 : 54,441.86 = 21,545.84 : x
  2. Step 2: Convert to fraction form
    39,450.31/54,441.86 = 21,545.84/x
  3. Step 3: Cross multiply
    39,450.31x = 54,441.86 × 21,545.84
  4. Step 4: Simplify right side
    39,450.31x = 1,172,995,604.86
  5. Step 5: Solve for x
    x = 1,172,995,604.86/39,450.31
  6. Step 6: Final answer
    x = 29,733.50

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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.