Home / 39,556.12-54,586.98-21,406.42

Finding the Fourth Proportional to 39,556.12, 54,586.98 and 21,406.42

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Solution

The fourth proportional to 39,556.12, 54,586.98 and 21,406.42 is: 29,540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,556.12 : 54,586.98 = 21,406.42 : x
  2. Step 2: Convert to fraction form
    39,556.12/54,586.98 = 21,406.42/x
  3. Step 3: Cross multiply
    39,556.12x = 54,586.98 × 21,406.42
  4. Step 4: Simplify right side
    39,556.12x = 1,168,511,630.43
  5. Step 5: Solve for x
    x = 1,168,511,630.43/39,556.12
  6. Step 6: Final answer
    x = 29,540.61

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1.5x scale

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.