Home / 42,658.75-63,940.44-15,979.07

Finding the Fourth Proportional to 42,658.75, 63,940.44 and 15,979.07

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Solution

The fourth proportional to 42,658.75, 63,940.44 and 15,979.07 is: 23,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,658.75 : 63,940.44 = 15,979.07 : x
  2. Step 2: Convert to fraction form
    42,658.75/63,940.44 = 15,979.07/x
  3. Step 3: Cross multiply
    42,658.75x = 63,940.44 × 15,979.07
  4. Step 4: Simplify right side
    42,658.75x = 1,021,708,896.48
  5. Step 5: Solve for x
    x = 1,021,708,896.48/42,658.75
  6. Step 6: Final answer
    x = 23,950.75

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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.