Home / 27,629.45-38,128.82-15,054.20

Finding the Fourth Proportional to 27,629.45, 38,128.82 and 15,054.20

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Solution

The fourth proportional to 27,629.45, 38,128.82 and 15,054.20 is: 20,774.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,629.45 : 38,128.82 = 15,054.20 : x
  2. Step 2: Convert to fraction form
    27,629.45/38,128.82 = 15,054.20/x
  3. Step 3: Cross multiply
    27,629.45x = 38,128.82 × 15,054.20
  4. Step 4: Simplify right side
    27,629.45x = 573,998,616.13
  5. Step 5: Solve for x
    x = 573,998,616.13/27,629.45
  6. Step 6: Final answer
    x = 20,774.89

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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.