Home / 39,354.75-54,310.71-21,450.92

Finding the Fourth Proportional to 39,354.75, 54,310.71 and 21,450.92

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Solution

The fourth proportional to 39,354.75, 54,310.71 and 21,450.92 is: 29,602.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,354.75 : 54,310.71 = 21,450.92 : x
  2. Step 2: Convert to fraction form
    39,354.75/54,310.71 = 21,450.92/x
  3. Step 3: Cross multiply
    39,354.75x = 54,310.71 × 21,450.92
  4. Step 4: Simplify right side
    39,354.75x = 1,165,014,423.80
  5. Step 5: Solve for x
    x = 1,165,014,423.80/39,354.75
  6. Step 6: Final answer
    x = 29,602.89

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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.