Home / 39,772.62-54,884.74-21,866.56

Finding the Fourth Proportional to 39,772.62, 54,884.74 and 21,866.56

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Solution

The fourth proportional to 39,772.62, 54,884.74 and 21,866.56 is: 30,175.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.62 : 54,884.74 = 21,866.56 : x
  2. Step 2: Convert to fraction form
    39,772.62/54,884.74 = 21,866.56/x
  3. Step 3: Cross multiply
    39,772.62x = 54,884.74 × 21,866.56
  4. Step 4: Simplify right side
    39,772.62x = 1,200,140,309.42
  5. Step 5: Solve for x
    x = 1,200,140,309.42/39,772.62
  6. Step 6: Final answer
    x = 30,175.04

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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.