Home / 27,906.12-38,481.48-19,417.86

Finding the Fourth Proportional to 27,906.12, 38,481.48 and 19,417.86

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Solution

The fourth proportional to 27,906.12, 38,481.48 and 19,417.86 is: 26,776.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.12 : 38,481.48 = 19,417.86 : x
  2. Step 2: Convert to fraction form
    27,906.12/38,481.48 = 19,417.86/x
  3. Step 3: Cross multiply
    27,906.12x = 38,481.48 × 19,417.86
  4. Step 4: Simplify right side
    27,906.12x = 747,227,991.23
  5. Step 5: Solve for x
    x = 747,227,991.23/27,906.12
  6. Step 6: Final answer
    x = 26,776.49

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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.