Home / 20,210.09-27,891.04-12,146.21

Finding the Fourth Proportional to 20,210.09, 27,891.04 and 12,146.21

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Solution

The fourth proportional to 20,210.09, 27,891.04 and 12,146.21 is: 16,762.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.09 : 27,891.04 = 12,146.21 : x
  2. Step 2: Convert to fraction form
    20,210.09/27,891.04 = 12,146.21/x
  3. Step 3: Cross multiply
    20,210.09x = 27,891.04 × 12,146.21
  4. Step 4: Simplify right side
    20,210.09x = 338,770,428.96
  5. Step 5: Solve for x
    x = 338,770,428.96/20,210.09
  6. Step 6: Final answer
    x = 16,762.44

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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.