Home / 39,355.26-54,310.30-21,450.28

Finding the Fourth Proportional to 39,355.26, 54,310.30 and 21,450.28

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Solution

The fourth proportional to 39,355.26, 54,310.30 and 21,450.28 is: 29,601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,355.26 : 54,310.30 = 21,450.28 : x
  2. Step 2: Convert to fraction form
    39,355.26/54,310.30 = 21,450.28/x
  3. Step 3: Cross multiply
    39,355.26x = 54,310.30 × 21,450.28
  4. Step 4: Simplify right side
    39,355.26x = 1,164,971,141.88
  5. Step 5: Solve for x
    x = 1,164,971,141.88/39,355.26
  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.