Home / 27,629.83-38,129.25-15,693.27

Finding the Fourth Proportional to 27,629.83, 38,129.25 and 15,693.27

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Solution

The fourth proportional to 27,629.83, 38,129.25 and 15,693.27 is: 21,656.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,629.83 : 38,129.25 = 15,693.27 : x
  2. Step 2: Convert to fraction form
    27,629.83/38,129.25 = 15,693.27/x
  3. Step 3: Cross multiply
    27,629.83x = 38,129.25 × 15,693.27
  4. Step 4: Simplify right side
    27,629.83x = 598,372,615.15
  5. Step 5: Solve for x
    x = 598,372,615.15/27,629.83
  6. Step 6: Final answer
    x = 21,656.76

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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.