Home / 42,531.76-63,804.66-12,942.82

Finding the Fourth Proportional to 42,531.76, 63,804.66 and 12,942.82

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Solution

The fourth proportional to 42,531.76, 63,804.66 and 12,942.82 is: 19,416.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,531.76 : 63,804.66 = 12,942.82 : x
  2. Step 2: Convert to fraction form
    42,531.76/63,804.66 = 12,942.82/x
  3. Step 3: Cross multiply
    42,531.76x = 63,804.66 × 12,942.82
  4. Step 4: Simplify right side
    42,531.76x = 825,812,229.54
  5. Step 5: Solve for x
    x = 825,812,229.54/42,531.76
  6. Step 6: Final answer
    x = 19,416.37

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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.