Home / 28,227.20-38,949.96-15,651.68

Finding the Fourth Proportional to 28,227.20, 38,949.96 and 15,651.68

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Solution

The fourth proportional to 28,227.20, 38,949.96 and 15,651.68 is: 21,597.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.20 : 38,949.96 = 15,651.68 : x
  2. Step 2: Convert to fraction form
    28,227.20/38,949.96 = 15,651.68/x
  3. Step 3: Cross multiply
    28,227.20x = 38,949.96 × 15,651.68
  4. Step 4: Simplify right side
    28,227.20x = 609,632,309.93
  5. Step 5: Solve for x
    x = 609,632,309.93/28,227.20
  6. Step 6: Final answer
    x = 21,597.34

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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.