Home / 39,571.20-54,609.54-21,666.96

Finding the Fourth Proportional to 39,571.20, 54,609.54 and 21,666.96

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Solution

The fourth proportional to 39,571.20, 54,609.54 and 21,666.96 is: 29,901.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,571.20 : 54,609.54 = 21,666.96 : x
  2. Step 2: Convert to fraction form
    39,571.20/54,609.54 = 21,666.96/x
  3. Step 3: Cross multiply
    39,571.20x = 54,609.54 × 21,666.96
  4. Step 4: Simplify right side
    39,571.20x = 1,183,222,718.80
  5. Step 5: Solve for x
    x = 1,183,222,718.80/39,571.20
  6. Step 6: Final answer
    x = 29,901.11

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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.