Home / 20,234.08-27,918.22-12,276.10

Finding the Fourth Proportional to 20,234.08, 27,918.22 and 12,276.10

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Solution

The fourth proportional to 20,234.08, 27,918.22 and 12,276.10 is: 16,938.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.08 : 27,918.22 = 12,276.10 : x
  2. Step 2: Convert to fraction form
    20,234.08/27,918.22 = 12,276.10/x
  3. Step 3: Cross multiply
    20,234.08x = 27,918.22 × 12,276.10
  4. Step 4: Simplify right side
    20,234.08x = 342,726,860.54
  5. Step 5: Solve for x
    x = 342,726,860.54/20,234.08
  6. Step 6: Final answer
    x = 16,938.10

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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.