Home / 20,118.24-27,754.20-12,047.40

Finding the Fourth Proportional to 20,118.24, 27,754.20 and 12,047.40

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Solution

The fourth proportional to 20,118.24, 27,754.20 and 12,047.40 is: 16,620.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.24 : 27,754.20 = 12,047.40 : x
  2. Step 2: Convert to fraction form
    20,118.24/27,754.20 = 12,047.40/x
  3. Step 3: Cross multiply
    20,118.24x = 27,754.20 × 12,047.40
  4. Step 4: Simplify right side
    20,118.24x = 334,365,949.08
  5. Step 5: Solve for x
    x = 334,365,949.08/20,118.24
  6. Step 6: Final answer
    x = 16,620.04

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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.