Home / 27,724.79-38,260.19-15,149.54

Finding the Fourth Proportional to 27,724.79, 38,260.19 and 15,149.54

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Solution

The fourth proportional to 27,724.79, 38,260.19 and 15,149.54 is: 20,906.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,724.79 : 38,260.19 = 15,149.54 : x
  2. Step 2: Convert to fraction form
    27,724.79/38,260.19 = 15,149.54/x
  3. Step 3: Cross multiply
    27,724.79x = 38,260.19 × 15,149.54
  4. Step 4: Simplify right side
    27,724.79x = 579,624,412.34
  5. Step 5: Solve for x
    x = 579,624,412.34/27,724.79
  6. Step 6: Final answer
    x = 20,906.36

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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.