Home / 20,116.45-27,754.28-11,617.45

Finding the Fourth Proportional to 20,116.45, 27,754.28 and 11,617.45

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Solution

The fourth proportional to 20,116.45, 27,754.28 and 11,617.45 is: 16,028.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.45 : 27,754.28 = 11,617.45 : x
  2. Step 2: Convert to fraction form
    20,116.45/27,754.28 = 11,617.45/x
  3. Step 3: Cross multiply
    20,116.45x = 27,754.28 × 11,617.45
  4. Step 4: Simplify right side
    20,116.45x = 322,433,960.19
  5. Step 5: Solve for x
    x = 322,433,960.19/20,116.45
  6. Step 6: Final answer
    x = 16,028.37

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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.