Home / 39,788.46-54,909.23-21,884.62

Finding the Fourth Proportional to 39,788.46, 54,909.23 and 21,884.62

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Solution

The fourth proportional to 39,788.46, 54,909.23 and 21,884.62 is: 30,201.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,788.46 : 54,909.23 = 21,884.62 : x
  2. Step 2: Convert to fraction form
    39,788.46/54,909.23 = 21,884.62/x
  3. Step 3: Cross multiply
    39,788.46x = 54,909.23 × 21,884.62
  4. Step 4: Simplify right side
    39,788.46x = 1,201,667,633.04
  5. Step 5: Solve for x
    x = 1,201,667,633.04/39,788.46
  6. Step 6: Final answer
    x = 30,201.41

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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.