Home / 39,781.80-59,679.54-19,792.62

Finding the Fourth Proportional to 39,781.80, 59,679.54 and 19,792.62

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Solution

The fourth proportional to 39,781.80, 59,679.54 and 19,792.62 is: 29,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,781.80 : 59,679.54 = 19,792.62 : x
  2. Step 2: Convert to fraction form
    39,781.80/59,679.54 = 19,792.62/x
  3. Step 3: Cross multiply
    39,781.80x = 59,679.54 × 19,792.62
  4. Step 4: Simplify right side
    39,781.80x = 1,181,214,456.99
  5. Step 5: Solve for x
    x = 1,181,214,456.99/39,781.80
  6. Step 6: Final answer
    x = 29,692.33

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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.