Home / 28,536.28-39,380.04-15,961

Finding the Fourth Proportional to 28,536.28, 39,380.04 and 15,961

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Solution

The fourth proportional to 28,536.28, 39,380.04 and 15,961 is: 22,026.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.28 : 39,380.04 = 15,961 : x
  2. Step 2: Convert to fraction form
    28,536.28/39,380.04 = 15,961/x
  3. Step 3: Cross multiply
    28,536.28x = 39,380.04 × 15,961
  4. Step 4: Simplify right side
    28,536.28x = 628,544,818.44
  5. Step 5: Solve for x
    x = 628,544,818.44/28,536.28
  6. Step 6: Final answer
    x = 22,026.17

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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.