Home / 27,815.70-38,385.18-17,202.54

Finding the Fourth Proportional to 27,815.70, 38,385.18 and 17,202.54

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Solution

The fourth proportional to 27,815.70, 38,385.18 and 17,202.54 is: 23,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,815.70 : 38,385.18 = 17,202.54 : x
  2. Step 2: Convert to fraction form
    27,815.70/38,385.18 = 17,202.54/x
  3. Step 3: Cross multiply
    27,815.70x = 38,385.18 × 17,202.54
  4. Step 4: Simplify right side
    27,815.70x = 660,322,594.36
  5. Step 5: Solve for x
    x = 660,322,594.36/27,815.70
  6. Step 6: Final answer
    x = 23,739.20

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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.