Home / 27,629.48-38,128.92-15,693.06

Finding the Fourth Proportional to 27,629.48, 38,128.92 and 15,693.06

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Solution

The fourth proportional to 27,629.48, 38,128.92 and 15,693.06 is: 21,656.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,629.48 : 38,128.92 = 15,693.06 : x
  2. Step 2: Convert to fraction form
    27,629.48/38,128.92 = 15,693.06/x
  3. Step 3: Cross multiply
    27,629.48x = 38,128.92 × 15,693.06
  4. Step 4: Simplify right side
    27,629.48x = 598,359,429.30
  5. Step 5: Solve for x
    x = 598,359,429.30/27,629.48
  6. Step 6: Final answer
    x = 21,656.56

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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.