Home / 20,126.46-27,770.36-12,169.02

Finding the Fourth Proportional to 20,126.46, 27,770.36 and 12,169.02

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Solution

The fourth proportional to 20,126.46, 27,770.36 and 12,169.02 is: 16,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.46 : 27,770.36 = 12,169.02 : x
  2. Step 2: Convert to fraction form
    20,126.46/27,770.36 = 12,169.02/x
  3. Step 3: Cross multiply
    20,126.46x = 27,770.36 × 12,169.02
  4. Step 4: Simplify right side
    20,126.46x = 337,938,066.25
  5. Step 5: Solve for x
    x = 337,938,066.25/20,126.46
  6. Step 6: Final answer
    x = 16,790.74

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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.