Home / 27,670.48-38,217.14-20,150.44

Finding the Fourth Proportional to 27,670.48, 38,217.14 and 20,150.44

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Solution

The fourth proportional to 27,670.48, 38,217.14 and 20,150.44 is: 27,830.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,670.48 : 38,217.14 = 20,150.44 : x
  2. Step 2: Convert to fraction form
    27,670.48/38,217.14 = 20,150.44/x
  3. Step 3: Cross multiply
    27,670.48x = 38,217.14 × 20,150.44
  4. Step 4: Simplify right side
    27,670.48x = 770,092,186.54
  5. Step 5: Solve for x
    x = 770,092,186.54/27,670.48
  6. Step 6: Final answer
    x = 27,830.82

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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.