Home / 39,784.76-54,902.94-21,880.04

Finding the Fourth Proportional to 39,784.76, 54,902.94 and 21,880.04

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Solution

The fourth proportional to 39,784.76, 54,902.94 and 21,880.04 is: 30,194.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,784.76 : 54,902.94 = 21,880.04 : x
  2. Step 2: Convert to fraction form
    39,784.76/54,902.94 = 21,880.04/x
  3. Step 3: Cross multiply
    39,784.76x = 54,902.94 × 21,880.04
  4. Step 4: Simplify right side
    39,784.76x = 1,201,278,523.32
  5. Step 5: Solve for x
    x = 1,201,278,523.32/39,784.76
  6. Step 6: Final answer
    x = 30,194.44

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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.