Home / 39,122.92-58,681.82-11,418.60

Finding the Fourth Proportional to 39,122.92, 58,681.82 and 11,418.60

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Solution

The fourth proportional to 39,122.92, 58,681.82 and 11,418.60 is: 17,127.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,122.92 : 58,681.82 = 11,418.60 : x
  2. Step 2: Convert to fraction form
    39,122.92/58,681.82 = 11,418.60/x
  3. Step 3: Cross multiply
    39,122.92x = 58,681.82 × 11,418.60
  4. Step 4: Simplify right side
    39,122.92x = 670,064,229.85
  5. Step 5: Solve for x
    x = 670,064,229.85/39,122.92
  6. Step 6: Final answer
    x = 17,127.15

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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.