Home / 30,229.12-41,716.08-16,981.12

Finding the Fourth Proportional to 30,229.12, 41,716.08 and 16,981.12

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Solution

The fourth proportional to 30,229.12, 41,716.08 and 16,981.12 is: 23,433.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,229.12 : 41,716.08 = 16,981.12 : x
  2. Step 2: Convert to fraction form
    30,229.12/41,716.08 = 16,981.12/x
  3. Step 3: Cross multiply
    30,229.12x = 41,716.08 × 16,981.12
  4. Step 4: Simplify right side
    30,229.12x = 708,385,760.41
  5. Step 5: Solve for x
    x = 708,385,760.41/30,229.12
  6. Step 6: Final answer
    x = 23,433.89

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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.