Home / 27,651.12-38,147.68-15,548.80

Finding the Fourth Proportional to 27,651.12, 38,147.68 and 15,548.80

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Solution

The fourth proportional to 27,651.12, 38,147.68 and 15,548.80 is: 21,451.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,651.12 : 38,147.68 = 15,548.80 : x
  2. Step 2: Convert to fraction form
    27,651.12/38,147.68 = 15,548.80/x
  3. Step 3: Cross multiply
    27,651.12x = 38,147.68 × 15,548.80
  4. Step 4: Simplify right side
    27,651.12x = 593,150,646.78
  5. Step 5: Solve for x
    x = 593,150,646.78/27,651.12
  6. Step 6: Final answer
    x = 21,451.23

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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.