Home / 39,571.14-54,609.54-21,666.28

Finding the Fourth Proportional to 39,571.14, 54,609.54 and 21,666.28

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Solution

The fourth proportional to 39,571.14, 54,609.54 and 21,666.28 is: 29,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,571.14 : 54,609.54 = 21,666.28 : x
  2. Step 2: Convert to fraction form
    39,571.14/54,609.54 = 21,666.28/x
  3. Step 3: Cross multiply
    39,571.14x = 54,609.54 × 21,666.28
  4. Step 4: Simplify right side
    39,571.14x = 1,183,185,584.31
  5. Step 5: Solve for x
    x = 1,183,185,584.31/39,571.14
  6. Step 6: Final answer
    x = 29,900.21

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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.