Home / 28,536.63-39,380.68-15,961.38

Finding the Fourth Proportional to 28,536.63, 39,380.68 and 15,961.38

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Solution

The fourth proportional to 28,536.63, 39,380.68 and 15,961.38 is: 22,026.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.63 : 39,380.68 = 15,961.38 : x
  2. Step 2: Convert to fraction form
    28,536.63/39,380.68 = 15,961.38/x
  3. Step 3: Cross multiply
    28,536.63x = 39,380.68 × 15,961.38
  4. Step 4: Simplify right side
    28,536.63x = 628,569,998.14
  5. Step 5: Solve for x
    x = 628,569,998.14/28,536.63
  6. Step 6: Final answer
    x = 22,026.78

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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.