Home / 39,550.40-54,578.81-21,645.04

Finding the Fourth Proportional to 39,550.40, 54,578.81 and 21,645.04

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Solution

The fourth proportional to 39,550.40, 54,578.81 and 21,645.04 is: 29,869.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,550.40 : 54,578.81 = 21,645.04 : x
  2. Step 2: Convert to fraction form
    39,550.40/54,578.81 = 21,645.04/x
  3. Step 3: Cross multiply
    39,550.40x = 54,578.81 × 21,645.04
  4. Step 4: Simplify right side
    39,550.40x = 1,181,360,525.60
  5. Step 5: Solve for x
    x = 1,181,360,525.60/39,550.40
  6. Step 6: Final answer
    x = 29,869.75

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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.