Home / 27,921.47-38,530.97-15,174.35

Finding the Fourth Proportional to 27,921.47, 38,530.97 and 15,174.35

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Solution

The fourth proportional to 27,921.47, 38,530.97 and 15,174.35 is: 20,940.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.47 : 38,530.97 = 15,174.35 : x
  2. Step 2: Convert to fraction form
    27,921.47/38,530.97 = 15,174.35/x
  3. Step 3: Cross multiply
    27,921.47x = 38,530.97 × 15,174.35
  4. Step 4: Simplify right side
    27,921.47x = 584,682,231.96
  5. Step 5: Solve for x
    x = 584,682,231.96/27,921.47
  6. Step 6: Final answer
    x = 20,940.24

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Half scale
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Double scale
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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.