Home / 39,800.10-54,922.15-21,894.64

Finding the Fourth Proportional to 39,800.10, 54,922.15 and 21,894.64

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Solution

The fourth proportional to 39,800.10, 54,922.15 and 21,894.64 is: 30,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,800.10 : 54,922.15 = 21,894.64 : x
  2. Step 2: Convert to fraction form
    39,800.10/54,922.15 = 21,894.64/x
  3. Step 3: Cross multiply
    39,800.10x = 54,922.15 × 21,894.64
  4. Step 4: Simplify right side
    39,800.10x = 1,202,500,623.65
  5. Step 5: Solve for x
    x = 1,202,500,623.65/39,800.10
  6. Step 6: Final answer
    x = 30,213.51

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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.