Home / 27,646.20-38,151.84-15,713.48

Finding the Fourth Proportional to 27,646.20, 38,151.84 and 15,713.48

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Solution

The fourth proportional to 27,646.20, 38,151.84 and 15,713.48 is: 21,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,646.20 : 38,151.84 = 15,713.48 : x
  2. Step 2: Convert to fraction form
    27,646.20/38,151.84 = 15,713.48/x
  3. Step 3: Cross multiply
    27,646.20x = 38,151.84 × 15,713.48
  4. Step 4: Simplify right side
    27,646.20x = 599,498,174.80
  5. Step 5: Solve for x
    x = 599,498,174.80/27,646.20
  6. Step 6: Final answer
    x = 21,684.65

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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.