Home / 20,253.58-27,949.28-11,054.78

Finding the Fourth Proportional to 20,253.58, 27,949.28 and 11,054.78

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Solution

The fourth proportional to 20,253.58, 27,949.28 and 11,054.78 is: 15,255.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.58 : 27,949.28 = 11,054.78 : x
  2. Step 2: Convert to fraction form
    20,253.58/27,949.28 = 11,054.78/x
  3. Step 3: Cross multiply
    20,253.58x = 27,949.28 × 11,054.78
  4. Step 4: Simplify right side
    20,253.58x = 308,973,141.56
  5. Step 5: Solve for x
    x = 308,973,141.56/20,253.58
  6. Step 6: Final answer
    x = 15,255.24

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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.