Home / 27,642.09-38,147.11-15,707.44

Finding the Fourth Proportional to 27,642.09, 38,147.11 and 15,707.44

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Solution

The fourth proportional to 27,642.09, 38,147.11 and 15,707.44 is: 21,676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,642.09 : 38,147.11 = 15,707.44 : x
  2. Step 2: Convert to fraction form
    27,642.09/38,147.11 = 15,707.44/x
  3. Step 3: Cross multiply
    27,642.09x = 38,147.11 × 15,707.44
  4. Step 4: Simplify right side
    27,642.09x = 599,193,441.50
  5. Step 5: Solve for x
    x = 599,193,441.50/27,642.09
  6. Step 6: Final answer
    x = 21,676.85

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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.