Home / 27,629.85-38,129.18-15,054.60

Finding the Fourth Proportional to 27,629.85, 38,129.18 and 15,054.60

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Solution

The fourth proportional to 27,629.85, 38,129.18 and 15,054.60 is: 20,775.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,629.85 : 38,129.18 = 15,054.60 : x
  2. Step 2: Convert to fraction form
    27,629.85/38,129.18 = 15,054.60/x
  3. Step 3: Cross multiply
    27,629.85x = 38,129.18 × 15,054.60
  4. Step 4: Simplify right side
    27,629.85x = 574,019,553.23
  5. Step 5: Solve for x
    x = 574,019,553.23/27,629.85
  6. Step 6: Final answer
    x = 20,775.34

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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.