Home / 27,786.56-38,341.87-15,849.19

Finding the Fourth Proportional to 27,786.56, 38,341.87 and 15,849.19

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Solution

The fourth proportional to 27,786.56, 38,341.87 and 15,849.19 is: 21,869.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,786.56 : 38,341.87 = 15,849.19 : x
  2. Step 2: Convert to fraction form
    27,786.56/38,341.87 = 15,849.19/x
  3. Step 3: Cross multiply
    27,786.56x = 38,341.87 × 15,849.19
  4. Step 4: Simplify right side
    27,786.56x = 607,687,464.37
  5. Step 5: Solve for x
    x = 607,687,464.37/27,786.56
  6. Step 6: Final answer
    x = 21,869.83

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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.