Home / 39,572.70-54,610.32-21,668.80

Finding the Fourth Proportional to 39,572.70, 54,610.32 and 21,668.80

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Solution

The fourth proportional to 39,572.70, 54,610.32 and 21,668.80 is: 29,902.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,572.70 : 54,610.32 = 21,668.80 : x
  2. Step 2: Convert to fraction form
    39,572.70/54,610.32 = 21,668.80/x
  3. Step 3: Cross multiply
    39,572.70x = 54,610.32 × 21,668.80
  4. Step 4: Simplify right side
    39,572.70x = 1,183,340,102.02
  5. Step 5: Solve for x
    x = 1,183,340,102.02/39,572.70
  6. Step 6: Final answer
    x = 29,902.94

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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.