Home / 20,206.56-27,887.04-12,251.28

Finding the Fourth Proportional to 20,206.56, 27,887.04 and 12,251.28

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Solution

The fourth proportional to 20,206.56, 27,887.04 and 12,251.28 is: 16,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206.56 : 27,887.04 = 12,251.28 : x
  2. Step 2: Convert to fraction form
    20,206.56/27,887.04 = 12,251.28/x
  3. Step 3: Cross multiply
    20,206.56x = 27,887.04 × 12,251.28
  4. Step 4: Simplify right side
    20,206.56x = 341,651,935.41
  5. Step 5: Solve for x
    x = 341,651,935.41/20,206.56
  6. Step 6: Final answer
    x = 16,907.97

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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.