Home / 20,968.83-28,937.10-12,016.71

Finding the Fourth Proportional to 20,968.83, 28,937.10 and 12,016.71

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Solution

The fourth proportional to 20,968.83, 28,937.10 and 12,016.71 is: 16,583.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,968.83 : 28,937.10 = 12,016.71 : x
  2. Step 2: Convert to fraction form
    20,968.83/28,937.10 = 12,016.71/x
  3. Step 3: Cross multiply
    20,968.83x = 28,937.10 × 12,016.71
  4. Step 4: Simplify right side
    20,968.83x = 347,728,738.94
  5. Step 5: Solve for x
    x = 347,728,738.94/20,968.83
  6. Step 6: Final answer
    x = 16,583.13

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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.