Home / 35,604.75-53,390.69-13,109.78

Finding the Fourth Proportional to 35,604.75, 53,390.69 and 13,109.78

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Solution

The fourth proportional to 35,604.75, 53,390.69 and 13,109.78 is: 19,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,604.75 : 53,390.69 = 13,109.78 : x
  2. Step 2: Convert to fraction form
    35,604.75/53,390.69 = 13,109.78/x
  3. Step 3: Cross multiply
    35,604.75x = 53,390.69 × 13,109.78
  4. Step 4: Simplify right side
    35,604.75x = 699,940,029.90
  5. Step 5: Solve for x
    x = 699,940,029.90/35,604.75
  6. Step 6: Final answer
    x = 19,658.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.