Home / 28,451.88-42,672.66-7,670.52

Finding the Fourth Proportional to 28,451.88, 42,672.66 and 7,670.52

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Solution

The fourth proportional to 28,451.88, 42,672.66 and 7,670.52 is: 11,504.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.88 : 42,672.66 = 7,670.52 : x
  2. Step 2: Convert to fraction form
    28,451.88/42,672.66 = 7,670.52/x
  3. Step 3: Cross multiply
    28,451.88x = 42,672.66 × 7,670.52
  4. Step 4: Simplify right side
    28,451.88x = 327,321,491.98
  5. Step 5: Solve for x
    x = 327,321,491.98/28,451.88
  6. Step 6: Final answer
    x = 11,504.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.