Home / 30,121.92-45,181.67-14,334.62

Finding the Fourth Proportional to 30,121.92, 45,181.67 and 14,334.62

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Solution

The fourth proportional to 30,121.92, 45,181.67 and 14,334.62 is: 21,501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.92 : 45,181.67 = 14,334.62 : x
  2. Step 2: Convert to fraction form
    30,121.92/45,181.67 = 14,334.62/x
  3. Step 3: Cross multiply
    30,121.92x = 45,181.67 × 14,334.62
  4. Step 4: Simplify right side
    30,121.92x = 647,661,772.83
  5. Step 5: Solve for x
    x = 647,661,772.83/30,121.92
  6. Step 6: Final answer
    x = 21,501.34

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Similar ratio
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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.