Home / 39,668.42-54,745.95-21,766.91

Finding the Fourth Proportional to 39,668.42, 54,745.95 and 21,766.91

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Solution

The fourth proportional to 39,668.42, 54,745.95 and 21,766.91 is: 30,040.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,668.42 : 54,745.95 = 21,766.91 : x
  2. Step 2: Convert to fraction form
    39,668.42/54,745.95 = 21,766.91/x
  3. Step 3: Cross multiply
    39,668.42x = 54,745.95 × 21,766.91
  4. Step 4: Simplify right side
    39,668.42x = 1,191,649,892.78
  5. Step 5: Solve for x
    x = 1,191,649,892.78/39,668.42
  6. Step 6: Final answer
    x = 30,040.27

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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.