Home / 20,694.24-31,046.82-10,830.87

Finding the Fourth Proportional to 20,694.24, 31,046.82 and 10,830.87

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Solution

The fourth proportional to 20,694.24, 31,046.82 and 10,830.87 is: 16,249.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.24 : 31,046.82 = 10,830.87 : x
  2. Step 2: Convert to fraction form
    20,694.24/31,046.82 = 10,830.87/x
  3. Step 3: Cross multiply
    20,694.24x = 31,046.82 × 10,830.87
  4. Step 4: Simplify right side
    20,694.24x = 336,264,071.33
  5. Step 5: Solve for x
    x = 336,264,071.33/20,694.24
  6. Step 6: Final answer
    x = 16,249.16

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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.