Home / 39,788.55-54,909.54-21,884.94

Finding the Fourth Proportional to 39,788.55, 54,909.54 and 21,884.94

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Solution

The fourth proportional to 39,788.55, 54,909.54 and 21,884.94 is: 30,201.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,788.55 : 54,909.54 = 21,884.94 : x
  2. Step 2: Convert to fraction form
    39,788.55/54,909.54 = 21,884.94/x
  3. Step 3: Cross multiply
    39,788.55x = 54,909.54 × 21,884.94
  4. Step 4: Simplify right side
    39,788.55x = 1,201,691,988.33
  5. Step 5: Solve for x
    x = 1,201,691,988.33/39,788.55
  6. Step 6: Final answer
    x = 30,201.95

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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.