Home / 30,991.92-42,767.10-16,844.66

Finding the Fourth Proportional to 30,991.92, 42,767.10 and 16,844.66

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Solution

The fourth proportional to 30,991.92, 42,767.10 and 16,844.66 is: 23,244.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,991.92 : 42,767.10 = 16,844.66 : x
  2. Step 2: Convert to fraction form
    30,991.92/42,767.10 = 16,844.66/x
  3. Step 3: Cross multiply
    30,991.92x = 42,767.10 × 16,844.66
  4. Step 4: Simplify right side
    30,991.92x = 720,397,258.69
  5. Step 5: Solve for x
    x = 720,397,258.69/30,991.92
  6. Step 6: Final answer
    x = 23,244.68

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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.