Home / 42,942.43-64,393.17-15,915.97

Finding the Fourth Proportional to 42,942.43, 64,393.17 and 15,915.97

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Solution

The fourth proportional to 42,942.43, 64,393.17 and 15,915.97 is: 23,866.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,942.43 : 64,393.17 = 15,915.97 : x
  2. Step 2: Convert to fraction form
    42,942.43/64,393.17 = 15,915.97/x
  3. Step 3: Cross multiply
    42,942.43x = 64,393.17 × 15,915.97
  4. Step 4: Simplify right side
    42,942.43x = 1,024,879,761.92
  5. Step 5: Solve for x
    x = 1,024,879,761.92/42,942.43
  6. Step 6: Final answer
    x = 23,866.37

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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.