Home / 39,429.73-54,414.24-21,525.90

Finding the Fourth Proportional to 39,429.73, 54,414.24 and 21,525.90

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Solution

The fourth proportional to 39,429.73, 54,414.24 and 21,525.90 is: 29,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,429.73 : 54,414.24 = 21,525.90 : x
  2. Step 2: Convert to fraction form
    39,429.73/54,414.24 = 21,525.90/x
  3. Step 3: Cross multiply
    39,429.73x = 54,414.24 × 21,525.90
  4. Step 4: Simplify right side
    39,429.73x = 1,171,315,488.82
  5. Step 5: Solve for x
    x = 1,171,315,488.82/39,429.73
  6. Step 6: Final answer
    x = 29,706.40

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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.