Home / 31,057.38-42,859.35-16,910.33

Finding the Fourth Proportional to 31,057.38, 42,859.35 and 16,910.33

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Solution

The fourth proportional to 31,057.38, 42,859.35 and 16,910.33 is: 23,336.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,057.38 : 42,859.35 = 16,910.33 : x
  2. Step 2: Convert to fraction form
    31,057.38/42,859.35 = 16,910.33/x
  3. Step 3: Cross multiply
    31,057.38x = 42,859.35 × 16,910.33
  4. Step 4: Simplify right side
    31,057.38x = 724,765,537.79
  5. Step 5: Solve for x
    x = 724,765,537.79/31,057.38
  6. Step 6: Final answer
    x = 23,336.34

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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.