Home / 20,126.46-27,774.42-11,173.98

Finding the Fourth Proportional to 20,126.46, 27,774.42 and 11,173.98

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Solution

The fourth proportional to 20,126.46, 27,774.42 and 11,173.98 is: 15,420.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.46 : 27,774.42 = 11,173.98 : x
  2. Step 2: Convert to fraction form
    20,126.46/27,774.42 = 11,173.98/x
  3. Step 3: Cross multiply
    20,126.46x = 27,774.42 × 11,173.98
  4. Step 4: Simplify right side
    20,126.46x = 310,350,813.59
  5. Step 5: Solve for x
    x = 310,350,813.59/20,126.46
  6. Step 6: Final answer
    x = 15,420.04

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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.