Home / 30,121.42-45,180.92-14,334.12

Finding the Fourth Proportional to 30,121.42, 45,180.92 and 14,334.12

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Solution

The fourth proportional to 30,121.42, 45,180.92 and 14,334.12 is: 21,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.42 : 45,180.92 = 14,334.12 : x
  2. Step 2: Convert to fraction form
    30,121.42/45,180.92 = 14,334.12/x
  3. Step 3: Cross multiply
    30,121.42x = 45,180.92 × 14,334.12
  4. Step 4: Simplify right side
    30,121.42x = 647,628,728.99
  5. Step 5: Solve for x
    x = 647,628,728.99/30,121.42
  6. Step 6: Final answer
    x = 21,500.60

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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.