Home / 39,450.82-54,442.38-21,545.92

Finding the Fourth Proportional to 39,450.82, 54,442.38 and 21,545.92

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Solution

The fourth proportional to 39,450.82, 54,442.38 and 21,545.92 is: 29,733.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,450.82 : 54,442.38 = 21,545.92 : x
  2. Step 2: Convert to fraction form
    39,450.82/54,442.38 = 21,545.92/x
  3. Step 3: Cross multiply
    39,450.82x = 54,442.38 × 21,545.92
  4. Step 4: Simplify right side
    39,450.82x = 1,173,011,164.09
  5. Step 5: Solve for x
    x = 1,173,011,164.09/39,450.82
  6. Step 6: Final answer
    x = 29,733.51

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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.