Home / 39,556.77-54,588.51-21,651.99

Finding the Fourth Proportional to 39,556.77, 54,588.51 and 21,651.99

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Solution

The fourth proportional to 39,556.77, 54,588.51 and 21,651.99 is: 29,879.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,556.77 : 54,588.51 = 21,651.99 : x
  2. Step 2: Convert to fraction form
    39,556.77/54,588.51 = 21,651.99/x
  3. Step 3: Cross multiply
    39,556.77x = 54,588.51 × 21,651.99
  4. Step 4: Simplify right side
    39,556.77x = 1,181,949,872.63
  5. Step 5: Solve for x
    x = 1,181,949,872.63/39,556.77
  6. Step 6: Final answer
    x = 29,879.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.