Home / 39,894.28-55,033.88-30,446.44

Finding the Fourth Proportional to 39,894.28, 55,033.88 and 30,446.44

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Solution

The fourth proportional to 39,894.28, 55,033.88 and 30,446.44 is: 42,000.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,894.28 : 55,033.88 = 30,446.44 : x
  2. Step 2: Convert to fraction form
    39,894.28/55,033.88 = 30,446.44/x
  3. Step 3: Cross multiply
    39,894.28x = 55,033.88 × 30,446.44
  4. Step 4: Simplify right side
    39,894.28x = 1,675,585,725.39
  5. Step 5: Solve for x
    x = 1,675,585,725.39/39,894.28
  6. Step 6: Final answer
    x = 42,000.65

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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.