Home / 30,821.72-46,231.97-11,113.20

Finding the Fourth Proportional to 30,821.72, 46,231.97 and 11,113.20

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Solution

The fourth proportional to 30,821.72, 46,231.97 and 11,113.20 is: 16,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,821.72 : 46,231.97 = 11,113.20 : x
  2. Step 2: Convert to fraction form
    30,821.72/46,231.97 = 11,113.20/x
  3. Step 3: Cross multiply
    30,821.72x = 46,231.97 × 11,113.20
  4. Step 4: Simplify right side
    30,821.72x = 513,785,073.44
  5. Step 5: Solve for x
    x = 513,785,073.44/30,821.72
  6. Step 6: Final answer
    x = 16,669.58

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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.