Home / 39,556.79-54,587.03-21,651.42

Finding the Fourth Proportional to 39,556.79, 54,587.03 and 21,651.42

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Solution

The fourth proportional to 39,556.79, 54,587.03 and 21,651.42 is: 29,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,556.79 : 54,587.03 = 21,651.42 : x
  2. Step 2: Convert to fraction form
    39,556.79/54,587.03 = 21,651.42/x
  3. Step 3: Cross multiply
    39,556.79x = 54,587.03 × 21,651.42
  4. Step 4: Simplify right side
    39,556.79x = 1,181,886,604.83
  5. Step 5: Solve for x
    x = 1,181,886,604.83/39,556.79
  6. Step 6: Final answer
    x = 29,878.23

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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.